Is there a way to change CPU affinity without losing online capability?

[Soulgamer]

I have a i7-12700H and i've heard disabling e-cores can help with performance on Elden Ring, but because of EAC i can't change the affinity manually using Task Manager or Process Lasso (haven't found a way to at least). Do any of you guys know a workaround for this that doesn't involve disabling EAC? Also, does anyone know if i can disable EAC, make the affinity changes and the re-enable it to play online? Or would that undo the changes? Thanks in advance

Edit: ive found a way to do it! Kudos to Phyrok for explaining it in this guide: https://steamcommunity.com/sharedfiles/filedetails/?id=3042130454

Basically, what you want to do is apply the settings on you want not on Elden Ring itself but on its related anticheat .exes, easyanticheat_eso.exe and launch_protected_game.exe to be exact (you should be ok with just the former, but id apply the desired settings to both just in case).
The trick is that you have to do these changes while EAC is loading, before the game launches, but once you do them and restart the game you'll see the changes take effect. The stuttering in my game basically vanished and performance improved significantly so i definitely recommend anyone with performance issues to try this (besides disabling e-cores you can set CPU priorities with Process Lasso which helps significantly as well)

[Bricky strong]

You can do it but it will crash your game and cause trouble so its not worth it, I've done it. It works but it makes the game so unstable its not worth it. by design....I modified the registry and now I've undone what I did.

[˷§omnu§˷]

THANK YOU SO MUCH. This finally fixed my stuttering and lag issues. I tried every solution on the net but no cigar. This was what fixed my problem and all I had to do was disable the affinity CPU 0 from both anti cheat programs with lasso.

OH BOY DO I HAVE A NEW FOUND HATRED FOR EASY ANTI CHEAT NOW.

I started a new discussion on steam linking this one with an easier to find title IMO

[Flamey]

Originally posted by ˷§omnu§˷:

THANK YOU SO MUCH. This finally fixed my stuttering and lag issues. I tried every solution on the net but no cigar. This was what fixed my problem and all I had to do was disable the affinity CPU 0 from both anti cheat programs with lasso.

OH BOY DO I HAVE A NEW FOUND HATRED FOR EASY ANTI CHEAT NOW.

I started a new discussion on steam linking this one with an easier to find title IMO

Hey, can you add me and send that to Steam's DM, or better send to here, hope if it is really better, it would be better for everyone of us

[Reverae]

Thankyou so much for this!

[Tempuras]

Hi!
I can't seem to find the other EAC exe "launch_protected_game.exe", and the game doesn't save the CPU Affinity, any clue on how to fix it? Or maybe it has another name now

EDIT: Just found it, it's called start_protected_game.exe" but it gives problems with permissions

EDIT2: The game crashes when it does change, so RIP. Until fix we can't play online

[Soulgamer]

Originally posted by Tempuras:

Hi!
I can't seem to find the other EAC exe "launch_protected_game.exe", and the game doesn't save the CPU Affinity, any clue on how to fix it? Or maybe it has another name now

EDIT: Just found it, it's called start_protected_game.exe" but it gives problems with permissions

EDIT2: The game crashes when it does change, so RIP. Until fix we can't play online

Have you applied the changes to both processes? If you disabled EAC in the past make sure that the affinity set for the game is the same as the ones for the EAC processes. Also, make sure that all steam processes are NOT using any affinities different from the default aka make sure steam is set to use all CPUs, as the game will crash otherwise. On my machine the actual game process doesn't show any changes in affinity as well but i DID see a performance increase so take that as you will

[Pave Papi]

This doesnt seem to work, at least not any longer. If i set the always affinity of start_protected_game.exe, nothing will happen. If i set the current affinity of start_protected_game.exe, then eldenring.exe will actually inheret the affinity, but it will close as soon as EAC finishes loading. It seems that EAC is able to detect affinity tampering, even when done during loading and with ProcessLasso.

Changing priority or affinity on easyanticheat_eso.exe seems to have no bearing on performance whatsoever, which i supported by the fact that eldenring.exe doesnt inheret the rules applied to easyanticheat_eso.exe, but it does inheret the rules applied to start_protected_game.exe (shortly before closing, that is).