With "stats" enabled I noticed periodical spikes >16ms for swap, and especially while electrocut someone on screen. (It's fun on RTX2060, but unfortunately, I don't have more potato, but 3d playable PC at current time)
It's gone if I disable vsync.
And even more fun: if i switch auto-fps(but still 60, I don't known what mean auto in this section) and vsync on/off multiple times, sometime swap consumes >14ms constantly.
I think I must walkthrough w/o vsync and try to catch freezes(if it still exists), but i have lack of time to it before weekend.