[ChaosKing]

I just tried the 4k code snipped by HolyWu + PS code above and it is SLOW:
Output 1000 frames in 172.86 seconds (5.78 fps) | 15% CPU load :-/

With "$env:VS_NO_LARGE_PAGES = 1"
Output 1000 frames in 24.06 seconds (41.55 fps) | 75% CPU load

p.s. I have 16gb of ram.