WELCOME ABOARD!
Many many mods have been created for SH5, and some of them do fix the actual bugs in the game. I have to ask, though, what are your computer specs? Low FPS in the control room and CTDs under only one condition sounds like it might be related to your graphics card or your amount of RAM, and not to the game itself. If you could tell us what you have we could start to help you figure it out.