>>531116732
update diferent chunks of units at diferent frames, you don't need 60 checks per every unit.

You only need like 1 check per second per unit.

You can do a loop that iterates all the units and then do something like if current_unit_id > 100 then wait a frame or end the loop and set up next frame begin and end id using the next chunks.

That way you can do 60 chunks of 100 units (6k units) per second without any frame issue.