Slow to perform terraform state refresh with 46 servers

Hi, can I check why MaaS can only work with a maximum of 8 workers (assuming 1 worker to 1 core) as mentioned at the end of How to manage regions - #2? I have also had problems assigning more than 8 workers as MaaS will start throwing errors. This will be a waste of an entire server’s resources and it is also counter productive to set up VMs before setting up MaaS.

My main issue is still with the problem statement in this topic. Refreshing terraform state is very slow for only 10s of servers.