Hey everyone, maybe someone can help me because i’m running out of solutions i could try. (i play Cataclysm only)
my PC specs:
CPU - AMD 5800x3d
GPU - AMD 6650 XT
game was totally fine until last week, but suddenly micro-stutters started, most noticable when targetting new enemies and killing them (right when a mob dies FPS drop from 165, where my cap is, to 140-150 + visible microstutter) - ironically in raid-environment, 10man in cataclysm, i have no problems at all - only in the open world
especially terrible it is in tanaris at the pirates, when i kill 4 or 5 of them at the same time i get a 0,5-1 second stutter - but smaller framedrops / micro stutters also happen on single mobs 
i already resetted my PC 3x, tried it without any addons, did a cvar_default reset, even tried an older GPU (1660 super), but nothing helped
no problems in raid environment but clunky stuttery game when being alone in the open world doing achievements and stuff, just killing mobs, just doesn’t make “sense” to me
maybe someone got an idea
edit:
i did the SSD test with windows-tool, no problems detected, same with 2 different programs for SSD tests
did the RAM-test from windows, no problems detected
run 3d-mark benchmark, my score / temps were super fine
i really don’t understand how using normal spells / killing mobs would cause stuttering