I have noticed in several games that when the game is loading assets, my frametime spikes (causing drops in fps). This is with an i7 9700K, RTX3080, 32gb ram, only M.2 SSD's, 750watt PSU... I tried everything from reinstalling windows, to cleaning/installing drivers, to even disabling certain SSD's and running the game/OS from one single drive. Nothing seems to help. I get these spikes for example in Hitman 2 where I get 120fps stable at 3440x1440 except from when the game is loading something during a level (for a fraction of a second it stutters, sometimes even holds for about 1 sec!!). Same for No Man's Sky, pretty decent fps but frequent spikes in frametime when loading assets (especially noticeable when warping to other systems).