FRAME RATE DROP AFTER LONG PLAY - LINUX

[USERCHEF]

INITIALLY THE GAME-PLAY IS NORMAL...AFTER REACHING AN UNMARKED POINT, THE FRAME-RATE DROPS TO SOMETHING LIKE 15 FRAMES-PER-SECOND...

MORE INFO...

IT IS UNCLEAR WHEN OR WHY THE LAG STARTS...I HAVE OBSERVED IT AT ABOUT AN HOUR IN...SOMETIMES AFTER PLAYING A FULL CAMPAIGN...SOMETIMES IN THE MIDDLE OF PLAY...IT DOES NOT ALWAYS START AT THE SAME SPOT OR TIME BUT IT IS CONSISTENT AND PERSISTS UNTIL THE GAME IS RE-STARTED...

THE LAG SEEMS TO BE RELATED TO MOVEMENT OF THE MOUSE CURSOR...THE FRAME-RATE RETURNS TO NORMAL WHEN THE MOUSE IS STILL...THE FRAME-RATE DROPS WHEN THE MOUSE IS ACTIVE...THIS CAN BE TESTED IN THE MENU BY MOVING THE MOUSE AND OBSERVING THE FRAME-RATE DROP ON THE BACKGROUND VIDEO...

MY GUESS WOULD BE THAT SOMETHING IS ADDING UP IN THE BACKGROUND UNTIL IT REACHES A POINT WHERE THE GAME STARTS TO LAG...EXCEPT THE LAG DOES NOT INCREASE OR DECREASE AFTER IT STARTS...MAYBE SOMETHING IS ACTIVATED ON A CERTAIN MISSION THAT STARTS THE LAG AND DOES NOT REFRESH UNTIL A RESTART...I REALLY DO NOT KNOW...THE INNER WORKINGS OF THIS GAME GO BEYOND MY KNOWLEDGE TO BE ABLE TO DENOTE THE CAUSE ON MY OWN...BUT I OFFER MY EXPERIENCE AND ASSISTANCE AND I THINK IT IS POSSIBLE WE CAN DEVISE A SOLUTION...

THE GAME IS BEING RUN ON LINUX WITH PROTON EXPERIMENTAL ENABLED

[chloecormier]

I think this isn't a game-specific issue. Is your Steam overlay disabled? It might help to re-enable it. You could also put this in your launch options if enabling the overlay doesn't help: LD_PRELOAD="" %command%

See ValveSoftware/steam-for-linux#11446 as well.

[USERCHEF]

LD_PRELOAD="" %command%

THIS IS THE SECRET...