Update Device State Signal 15

The process Process 'Update Device State' has a default frequency of 1 min, but we have a large number of device groups, over a thousand, i see this every minute 'already running, not starting, proc name Update Device State' And after a few minutes it then sends a signal 15, and terminals the process 'Process Update Device State has caught signal 15 and is exiting.'

I'm wondering whats the implications if i change the time factor to allow the process to run longer, or if there is an limitation to the number of device groups that should be allowed?