diff --git a/code/modules/mob/living/simple_animal/hostile/alien.dm b/code/modules/mob/living/simple_animal/hostile/alien.dm
index 7d0ef52ad09..95eb9d312b1 100644
--- a/code/modules/mob/living/simple_animal/hostile/alien.dm
+++ b/code/modules/mob/living/simple_animal/hostile/alien.dm
@@ -7,10 +7,9 @@
 	icon_living = "samak"
 	icon_dead = "samak_dead"
 	icon = 'icons/jungle.dmi'
-	move_to_delay = 2
+	speed = 2
 	maxHealth = 125
 	health = 125
-	speed = 2
 	melee_damage_lower = 5
 	melee_damage_upper = 15
 	attacktext = "mauled"
@@ -29,10 +28,9 @@
 	icon_living = "diyaab"
 	icon_dead = "diyaab_dead"
 	icon = 'icons/jungle.dmi'
-	move_to_delay = 1
+	speed = 1
 	maxHealth = 25
 	health = 25
-	speed = 1
 	melee_damage_lower = 1
 	melee_damage_upper = 8
 	attacktext = "gouged"
@@ -55,10 +53,9 @@
 	icon_living = "shantak"
 	icon_dead = "shantak_dead"
 	icon = 'icons/jungle.dmi'
-	move_to_delay = 1
+	speed = 1
 	maxHealth = 75
 	health = 75
-	speed = 1
 	melee_damage_lower = 3
 	melee_damage_upper = 12
 	attacktext = "gouged"
diff --git a/code/modules/mob/living/simple_animal/hostile/commanded/commanded.dm b/code/modules/mob/living/simple_animal/hostile/commanded/commanded.dm
index 2a2ad0fdd00..bd062f28468 100644
--- a/code/modules/mob/living/simple_animal/hostile/commanded/commanded.dm
+++ b/code/modules/mob/living/simple_animal/hostile/commanded/commanded.dm
@@ -125,7 +125,7 @@ ABSTRACT_TYPE(/mob/living/simple_animal/hostile/commanded)
 	stop_automated_movement = 1
 	var/mob/mob_to_follow = following_mob_ref?.resolve()
 	if(mob_to_follow && get_dist(src, mob_to_follow) <= 10)
-		walk_to(src,mob_to_follow,1,move_to_delay)
+		walk_to(src, mob_to_follow, 1, speed)
 
 /mob/living/simple_animal/hostile/commanded/proc/commanded_stop() //basically a proc that runs whenever we are asked to stay put. Probably going to remain unused.
 	return
diff --git a/code/modules/mob/living/simple_animal/hostile/giant_spider.dm b/code/modules/mob/living/simple_animal/hostile/giant_spider.dm
index 8602d248c24..42d34711f74 100644
--- a/code/modules/mob/living/simple_animal/hostile/giant_spider.dm
+++ b/code/modules/mob/living/simple_animal/hostile/giant_spider.dm
@@ -41,8 +41,7 @@
 	faction = "spiders"
 	var/busy = 0
 	pass_flags = PASSTABLE
-	move_to_delay = 6
-	speed = 3
+	speed = 6
 	mob_size = 6
 	smart_melee = FALSE
 
@@ -113,7 +112,7 @@
 	melee_damage_upper = 20
 	armor_penetration = 15
 	poison_per_bite = 5
-	move_to_delay = 4
+	speed = 4
 	sample_data = list("Genetic markers identified as being linked with stem cell differentiaton", "Cellular biochemistry shows high metabolic capacity")
 	smart_melee = TRUE
 
@@ -130,7 +129,7 @@
 	armor_penetration = 15
 	poison_type = /singleton/reagent/perconol // mildly beneficial for organics
 	poison_per_bite = 2
-	move_to_delay = 5
+	speed = 5
 	sample_data = list("Genetic markers identified as being linked with stem cell differentiaton", "Cellular biochemistry geared towards creating strong electrical potential differences")
 	smart_melee = TRUE
 
@@ -149,7 +148,7 @@
 	ranged_attack_range = 4
 	poison_type = /singleton/reagent/capsaicin/condensed
 	poison_per_bite = 2
-	move_to_delay = 5
+	speed = 5
 	sample_data = list("Genetic markers identified as being linked with stem cell differentiaton", "Exocrinic caspaicin synthesis detected")
 	smart_melee = TRUE
 
@@ -232,7 +231,7 @@
 				for(var/turf/T in orange(20, src))
 					move_targets.Add(T)*/
 				stop_automated_movement = 1
-				GLOB.move_manager.move_to(src, pick(orange(20, src)), 1, move_to_delay)
+				GLOB.move_manager.move_to(src, pick(orange(20, src)), 1, speed)
 				addtimer(CALLBACK(src, PROC_REF(stop_walking)), 50, TIMER_UNIQUE)
 
 /mob/living/simple_animal/hostile/giant_spider/proc/stop_walking()
@@ -250,7 +249,7 @@
 					if(C.stat && !istype(C, /mob/living/simple_animal/hostile/giant_spider))
 						cocoon_target = C
 						busy = MOVING_TO_TARGET
-						GLOB.move_manager.move_to(src, C, 1, move_to_delay)
+						GLOB.move_manager.move_to(src, C, 1, speed)
 						//give up if we can't reach them after 10 seconds
 						addtimer(CALLBACK(src, PROC_REF(GiveUp), C), 100, TIMER_UNIQUE)
 						return
@@ -279,7 +278,7 @@
 								cocoon_target = O
 								busy = MOVING_TO_TARGET
 								stop_automated_movement = 1
-								GLOB.move_manager.move_to(src, O, 1, move_to_delay)
+								GLOB.move_manager.move_to(src, O, 1, speed)
 								//give up if we can't reach them after 10 seconds
 								GiveUp(O)
 
diff --git a/code/modules/mob/living/simple_animal/hostile/hivebots/hivebot.dm b/code/modules/mob/living/simple_animal/hostile/hivebots/hivebot.dm
index 737046955a0..81e9e16d058 100644
--- a/code/modules/mob/living/simple_animal/hostile/hivebots/hivebot.dm
+++ b/code/modules/mob/living/simple_animal/hostile/hivebots/hivebot.dm
@@ -180,7 +180,7 @@
 	icon_state = "hivebotbomber"
 	organ_names = list("head", "core", "bottom thruster")
 	attacktext = "bumped"
-	move_to_delay = 8
+	speed = 8
 	var/has_exploded = FALSE
 
 /mob/living/simple_animal/hostile/hivebot/bomber/AttackingTarget()
diff --git a/code/modules/mob/living/simple_animal/hostile/hostile.dm b/code/modules/mob/living/simple_animal/hostile/hostile.dm
index 0e456c4b40a..527d0a97ec2 100644
--- a/code/modules/mob/living/simple_animal/hostile/hostile.dm
+++ b/code/modules/mob/living/simple_animal/hostile/hostile.dm
@@ -20,7 +20,6 @@ ABSTRACT_TYPE(/mob/living/simple_animal/hostile)
 	var/projectiletype
 	var/projectilesound
 	var/casingtype
-	var/move_to_delay = 4 //delay for the automated movement.
 	var/attack_delay = DEFAULT_ATTACK_COOLDOWN
 	var/list/friends = list()
 	var/break_stuff_probability = 10
@@ -191,10 +190,10 @@ ABSTRACT_TYPE(/mob/living/simple_animal/hostile)
 				GLOB.move_manager.stop_looping(src)
 				OpenFire(last_found_target)
 			else
-				GLOB.move_manager.move_to(src, last_found_target, 6, move_to_delay)
+				GLOB.move_manager.move_to(src, last_found_target, 6, speed)
 		else
 			change_stance(HOSTILE_STANCE_ATTACKING)
-			GLOB.move_manager.move_to(src, last_found_target, 1, move_to_delay)
+			GLOB.move_manager.move_to(src, last_found_target, 1, speed)
 
 /**
  * Attack the mob set in `target_mob`
diff --git a/code/modules/mob/living/simple_animal/hostile/krampus.dm b/code/modules/mob/living/simple_animal/hostile/krampus.dm
index a186b3072e3..0117abe17ca 100644
--- a/code/modules/mob/living/simple_animal/hostile/krampus.dm
+++ b/code/modules/mob/living/simple_animal/hostile/krampus.dm
@@ -154,7 +154,7 @@
 	minbodytemp = 0
 
 	faction = "Krampus"
-	move_to_delay = 4
+	speed = 4
 
 	tameable = FALSE
 
diff --git a/code/modules/mob/living/simple_animal/hostile/mimic.dm b/code/modules/mob/living/simple_animal/hostile/mimic.dm
index 95d531953b1..7c8b29e2efa 100644
--- a/code/modules/mob/living/simple_animal/hostile/mimic.dm
+++ b/code/modules/mob/living/simple_animal/hostile/mimic.dm
@@ -35,7 +35,7 @@
 	minbodytemp = 0
 
 	faction = "mimic"
-	move_to_delay = 8
+	speed = 8
 
 	tameable = FALSE
 	sample_data = null
@@ -163,7 +163,7 @@ var/global/list/protected_objects = list(/obj/structure/table, /obj/structure/ca
 			health = 15 * I.w_class
 			melee_damage_lower = 2 + I.force
 			melee_damage_upper = 2 + I.force
-			move_to_delay = 2 * I.w_class
+			speed = 2 * I.w_class
 
 		maxHealth = health
 		if(creator)
diff --git a/code/modules/mob/living/simple_animal/hostile/retaliate/cavern.dm b/code/modules/mob/living/simple_animal/hostile/retaliate/cavern.dm
index 28357adeac2..4e727f9e1be 100644
--- a/code/modules/mob/living/simple_animal/hostile/retaliate/cavern.dm
+++ b/code/modules/mob/living/simple_animal/hostile/retaliate/cavern.dm
@@ -82,7 +82,7 @@
 	icon_state = "sadrone"
 	icon_living = "sadrone"
 	icon_dead = "sadrone_dead"
-	move_to_delay = 5
+	speed = 5
 	health = 60
 	maxHealth = 60
 	harm_intent_damage = 5
@@ -177,7 +177,7 @@
 			break
 
 	if(target_ore)
-		GLOB.move_manager.move_to(src, target_ore, 1, move_to_delay)
+		GLOB.move_manager.move_to(src, target_ore, 1, speed)
 	else if(found_turfs.len)
 		for(var/turf/simulated/mineral/M in found_turfs)
 			if(!QDELETED(M) || !M.mineral)
diff --git a/code/modules/mob/living/simple_animal/hostile/retaliate/exoplanet.dm b/code/modules/mob/living/simple_animal/hostile/retaliate/exoplanet.dm
index 5700373afdd..230c08b5143 100644
--- a/code/modules/mob/living/simple_animal/hostile/retaliate/exoplanet.dm
+++ b/code/modules/mob/living/simple_animal/hostile/retaliate/exoplanet.dm
@@ -17,10 +17,9 @@
 	icon_state = "royalcrab"
 	icon_living = "royalcrab"
 	icon_dead = "royalcrab_dead"
-	move_to_delay = 3
 	maxHealth = 150
 	health = 150
-	speed = 1
+	speed = 3
 	melee_damage_lower = 10
 	melee_damage_upper = 15
 	natural_armor = list(
diff --git a/code/modules/mob/living/simple_animal/hostile/space_fauna.dm b/code/modules/mob/living/simple_animal/hostile/space_fauna.dm
index 5690265cb64..902ab7f4150 100644
--- a/code/modules/mob/living/simple_animal/hostile/space_fauna.dm
+++ b/code/modules/mob/living/simple_animal/hostile/space_fauna.dm
@@ -73,7 +73,7 @@
 	stop_automated_movement = 1
 	if(istype(last_found_target, /obj/effect/energy_field) && !QDELETED(last_found_target) && (last_found_target in targets))
 		change_stance(HOSTILE_STANCE_ATTACKING)
-		GLOB.move_manager.move_to(src, last_found_target, 1, move_to_delay)
+		GLOB.move_manager.move_to(src, last_found_target, 1, speed)
 		return 1
 	..()
 
@@ -152,6 +152,8 @@
 	maxHealth = 100
 	health = 100
 
+	speed = 10
+
 	mob_size = 15
 
 	melee_damage_lower = 30
diff --git a/code/modules/mob/living/simple_animal/hostile/spider_queen.dm b/code/modules/mob/living/simple_animal/hostile/spider_queen.dm
index de383bec31a..d88802c07b7 100644
--- a/code/modules/mob/living/simple_animal/hostile/spider_queen.dm
+++ b/code/modules/mob/living/simple_animal/hostile/spider_queen.dm
@@ -46,8 +46,7 @@
 	attack_sound = 'sound/weapons/bite.ogg'
 
 	pass_flags = PASSTABLE|PASSRAILING
-	move_to_delay = 6
-	speed = -1
+	speed = 6
 	mob_size = 15
 	environment_smash = 2
 
diff --git a/html/changelogs/geeves-simple_mob_slowdown.yml b/html/changelogs/geeves-simple_mob_slowdown.yml
new file mode 100644
index 00000000000..76ed59f74e2
--- /dev/null
+++ b/html/changelogs/geeves-simple_mob_slowdown.yml
@@ -0,0 +1,7 @@
+author: Geeves
+
+delete-after: True
+
+changes:
+  - balance: "Tweaked mobs to use the universal speed variable when chasing after a target."
+  - balance: "Made Reavers move much slower when pursuing a target."