I've only properly tested on my PC and have no slower ones to try on. I've found that having Global Generation disabled and the heuristic to Manhattan, which both are defaults, is best for performance.
I've also saved as much performance as I can with local generation by not regenerating nodes that are already generated and leave the modified tiles for GlobalTile and GlobalWall to handle. If you have the debug enabled, you should be able to see this. However, it'll also check any tiles such as long grass, vines and other similar things too.