Hi all, new runner to the game after rediscovering how much I love (and hate) this game.

I found a fix for the FPS issue dropping down to the low to mid 40fps in fullscreen mode on steam. Credit to Liandri for the fix:

• Create a backup copy of the Flyn.exe file (just in case)
• open FLYN\Source\Flyn.exe in a hex editor (eg HxD).
• go to offset 5A852h (Ctrl+G to "go to offset". Ignore "h" at the end of the value - it only means it's a hex value and is located at the left part of the editor window)
• change 17h to 16h.
• save the file.

This fixed all my framerate drops in windowed mode as well. Hopefully this helps some people if they are interested in running (or just playing) the game.