Red Alert runs great and I've played multiple online games with different resolutions no problem.
Tiberian Sun however seems to lag hard no matter what. I've tried all different render settings and resolutions. Game is very slow, low fps with jittery cursor etc. Sometimes get crashes after white rectangle appears on game launch in corner of screen. In skirmishes I do get to run, CnCNet and CnCNetWineserver are at 80% CPU and 30% respectively.
Any tips appreciated. Great work to all devs and patches making this possible!