Application exceeding concurrent process limit

I have a multipage Dash app deployed in a shared hosting platform using Passenger Phusion and Apache. The problem is, it frequently exceeds the concurrent process limit of 75 and the server shuts it down.

The resource usage snapshot shows only a few PID’s, but multiple processes with the same PID. My hosting support tells me this is because each thread is counted separately towards the process limit. The Apache and Passenger configurations can’t be changed.

Is there any way I can reduce the concurrent processes within the app code? Also worth mentioning is this app is meant for personal use only, so performance isn’t a primary concern.