Sorry for reviving this old thread. The previous posts are too informative to justify a new thread.
I have just upgraded one of my PC's to Windows 8 to see how well it goes, and of course tried JJ2. The findings posted above appear to be correct. Windowed mode works fine, but pushes the FPS counter up to 110/120-ish numbers, which can't be right at all. Then when I switch to fullscreen (JJ2 relies on DirectDraw for that) it suddenly stucks at 30 FPS max which creates very visible lag.
And to make it worse, network play appears to be stuck right after joining. Chat will work, and I can see all players and their positions in the level, yet they keep blinking as if there is a CTO. I can however stay in this 'stuck' game without timing out. Both Windows Firewall and my router's NAT are still open to JJ2's traffic.
I'm indeed surprised beyond believe... Anyone who could share some findings and/or solutions?
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