I suspect that your issue is that displaying nebula clouds in the system view is causing the slowdowns. Have you tried going into options and then advanced options and then unchecking "Display nebulae clouds in system"???ORIGINAL: jp0249107
I'm running into extreme slowdown when I'm somewhere between planet and solar system view. It happened when I was just beginning a map. It shouldn't be my comp I'm running 8 gb's of RAM and a 2.9 gHz quad-core. I did add one of the ship designs listed elsewhere on the forum but it was simply added as another "family" in the folder.
EDIT: Although I am flattered you gave my mod a shot, if you are still playing ROTS please do yourself a favor and upgrade to Legends when you get a chance. Sounds like you are running a good PC, so hopefully you have the cash for it. Among all the amazing features that Legends boasts is an important one: Elliot overhauled how graphics are loaded. They are only cached as needed (not all loaded all the time). This has actually led to higher resolution ship graphics and improved performance. Also, Legends contains Woodman's awesome new shipset artwork for every single race; way better than the colorful conversions I did for each race in this mod...