You can try updating your graphics drivers, lowering the graphics settings, clearing the game’s cache, verifying the integrity of the game files, increasing virtual memory, checking for overclocking ...
XDA Developers on MSN
Lowering graphics settings can sometimes hurt performance, but not how you'd expect
Don't assume your GPU is the problem ...
Diablo 4 requires surprisingly low minimum system requirements, but that doesn’t mean it lacks performance issues. To reduce Diablo 4 lag and stutter, PC players can lower their graphics settings ...
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