Hey! Sorry about the late reply :C
As for your 2nd method of setting the priority to real-time, sadly I don't think it made any noticeable difference for me :( I still have a constant 20-ish FPS... But setting it to a higher priority has to do something, right? I'm positive it'll help the game remain relatively stable and may give less FPS drops and such :D
EDIT: Never-mind the above paragraph, I'm getting up to 30 FPS now :O such amazing :D
Also, Thanks so much for your post! I had no idea how to change priorities, or that windows mode gives better FPS. I never even thought about lowering my desktop's resolution :D
Thanks for replying :D Now I also have an option of playing full-screen with optimized, if I ever wanted C:
Though, I wonder if it'll stretch the 800 x 600 resolution across my 1600 x 900 screen, or become 1600 x 900 resolution with optimized settings...