Huh, I didn't notice it but now that you mention it my game had a lag spike of 70ms every 10 seconds. I just made a new version that should fix it. It will still stutter when you first load the game and after you build or destroy labs, but the rest of the time it should be gone. Let me know if you still have issues.
The problem was that the mod was searching for all labs on all surfaces every 10 seconds (or whatever you set for "Run every N seconds" setting). The change I made was caching the list of labs and clear the cache when labs get built/destroyed. On my game it used to be 70ms to fetch labs and 0.5ms to look through them, now it is 0.004ms to fetch labs (once they're cached) and still 0.5ms to look through them. There are still some optimizations I could make, eg instead of searching for labs just add/remove from the cache, and could maybe optimize the process of looking through labs.
