Is that fps drop also related to factory and workers count? I thought it maybe, in my previous play couple months ago, I didn't open any storage or factory and my fps was better, now opening them and adding workers 20 fps drop in the center of the map.
Oooh, that's something I haven't tested. I just tested 200, 500, and 900 slave maps and the results were bafflingly inconclusive. Although the game definitely felt 'slower' with 900, running MSI Afterburner and tracking all the CPU, RAM, and GPU variables didn't show any consistency. The one thing I didn't change was the number of workers/dolls/biofactories.
One thing I did note was that the framerate spiked up huge whenever I opened the galaxy screen. It must, somehow, stop plotting the station and focus only on that screen. It worked beautifully. None of the other screens seemed to have the same impact. Here are the three saves that I used for testing, in case anyone else wants to tinker with them. The only difference between them is the number of slaves, as far as I know.
The Bump below is when I opened the galaxy screen with the planets. Framerates skyrocketed. Then, when I closed it, they returned to close to normal.
EDIT: The one thing that consistently destroyed framerates was the hotel rooms. As soon as my screen was zoomed out and only had hotel rooms in it the frame rate plummeted, regardless of the number of slaves. Usually something like 4FPS.