If you place a single timer for each tower, maybe, but if you use a single timer for all tower and all the scans are made recursively using a counter?
Example, at x time the scan start, doing scan of tower-1 first, then tower-2 few ticks after and so on?
This way the load is lesser and well organized throught the standard game job...
But it's just my 2 cent idea...
About the option 2, already tried, but as told it's a timed settings that I need, and changing the value force me to save, exit the game, edit again the time and then reload it in a single game, thing that not only slow down it a lot the game, but reduce drastically the time I can dedicate to play...
Having ti as option in the standard mod settings, not the starting one, can solve this and that's the reason I was asking.
Each one after that is the only owner of the problem it cause to it's game, but putting a warning on the settings text can be enough to relief you from all the self caused problems.
As standard you can place it on 120 seconds with a starting text that warn you about the chance to modify it and the risks.
I can try to do it myself, but I dont like to play with modders work without his permission to do it.