Quote:What is it that make version 4.0 so much more demanding?
Chiefly the increases to emulator accuracy (taking more steps to emulate the GC/Wii hardware better) but without the optimizations that have since been made in 4.0-xxxx development builds.
Quote:I have also tried version 3.5-1282 and still come up with the same results as far as only having 30-50 FPS during the cut scenes.
Unless you use an exceedingly old, outdated, and unsupported build, your hardware is still very unlikely to get fullspeed consistently. From time to time, 60 FPS will be possible on your hardware, but not all the time.