I have the Platinum version (all expansion packs), which ran fine in Win7. On that old system (Athlon dual 3gig, 2gig RAM, GTX950 vid card) it maintained a solid 60fps; on my new Win11 system (i7, 8 core, 3.6gig, 16gig RAM, GTX1070, 256gig NVMe, 2tB WD Black SATA) it barely sustains 25fps, and at night with fireworks will drop to 9-10fps.

I have disabled that GameDVR nonsense in the registry, all system and vid driver parameters are set for high performance. My race sims, flight sim, etc, will hit over 300fps; I limit them to 60 in the vid driver profiles, that is the refresh rate of my monitor.