Hello KSP Forum, I was just wondering if its normal to encounter part count lag at 64 parts? I am usually a very clean builder who minimizes part count to the best of my ability, and most of my crafts in space range between 20-30 parts at most. But then I decided to build this OKS mobile colony ship: With only 64 parts, which is low compared to many of the creations posted around here, and yet took my frame rate to a low 13-15. I also have a base on the Mun with a similar part count but with no lag issue (50-60 fps) at all. Graphics are turned down to minimum as well, so I do think it is due to the part count. Specs: Intel Core i7-4700MQ CPU @ 2.4GHz Nvidia GTX 770M 8 GB RAM Mods installed: Deadly Reentry Final Frontier Fine Print Hangar KAS Kerbal Alarm Clock Kerbal Construction Time Inferno Robotics MechJeb 2 Mission Controller Extended Procedural Fairings Remote Tech 2 Sane Strategies Select Root TAC Life Support Kerbonite + (including Karbonite) MKS/OKS USI Exploration Pack Is this normal? This computer isn't the most beastly out there, but the specs on it aren't exactly bad either. Also, a base with similar part count had no problems, which is also weird. Does anyone have any idea what might be wrong? Or am I just out of processing power and have to wait either for multi threading to finally get here (or get a better computer)? Thanks in advance! SgtMook