16x empty map v1.0 Mod

I created a 16x map, with no errors, all files changes to correct resolution, yet, i get a 20 fps drop, I have only 8gigs ram and 1 gig video, the map can be loaded, and tested, can buy equipment, and have basic fields .

wondering if anyone would help test to see if it is my system of the map itself? here is the link to the map, loads in 10 seconds, no errors and 20mb use if share it, yet would greatly appreciate knowing if its my system or needs something else done to map (you can fall off the map)