Why do ground textures disappear during Titan combat on Samsung 990 PRO?

Visual glitches ruined my Titan fights. Clearing temp files made it worse, increasing fragmentation. I used GamePP Resource Scheduler to set priority to Highest. AIDA64 confirmed latency dropped from 120ms to 15ms. Sustained writes stayed above 3500MB/s, with drive temp stable at 45-50℃.