poe2 stuttering with 6700xt, works fine for the first 30mins

im playing poe2 via steam(and all its magic) on a fedora41


as the title states game runs superb(for minutes) then the game stutters heavily

i already undervolted and underclocked my gpu but the problem still persists (gpu temp at 60deg)
this happens in 1440p both in 144 and 60fps


pc specs
cpu: 5700x (cooled by peerless assassin mini)

gpu: sapphire nitro 6700xt

ram: corsair ddr4 8GBx2 (OC to 3200mhz) (passes memory stress test via stressapptest) (i could test via other apps if you have suggestions)
psu: cooler master 750 gold 80+ (mini itx version)

OS: fedora 41
gpu driver: MESA 24.3.4

game is installed in a 512 kingston ssd (not m.2 though)

attaching a video showing behavior and historical data from LACT
the GPU and MEMORY clocks dips down and then climbs up as the game stutters

https://www.youtube.com/shorts/7drGWEP4DVg

EDIT: looking at the footage, the CPU bar/graph maxes out during the stuttering, as usual- thoughts on this?
EDIT: ran the GPU in FurMark at 1440p and it went steady 93 to 97fps for 32mins... i think GPU is good
EDIT: closing the game and immediately starting it resolves the stuttering, having to do this every 15-30mins tho is kinda tiring, like poe2's endgame ;^)
EDIT: it seems to be CPU issue, the CPU graph is going from 7ms to 50+ms during the stuttering event
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EDIT: played poe1 for 1hr and no stuttering issues, this could/might be a poe2 spaghetti code issue

POE2 char specs
crit(70%) spark bloodmage with choir of the storm equipped
maybe a dev team could try my setup and replicate the issue on their end?
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EDIT: played with another poe2 char and issue persists- not a choir trigger related bug
exit to login screen does not clear the issue vs. exiting the game
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EDIT: stuttering issue also occurs in poe1... damn it seems to be a cpu issue on my end :(
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sounds like cpu stutter to me, had similar things happen when multi threading was on. try turning it off an on when stutter starts, if this works set affinity

oh btw some ppl noticed perfomance drops due to some mem leak thats 'fixable' with clearing chat logs (/clear command) i dont think this is it tho

thanks for the tip,

turning multi threading on and off during stuttering worsened the stutters and the fps, any more thoughts?

EDIT: looking at the footage, the CPU bar/graph maxes out during the stuttering, as usual- thoughts on this?