I did some speed tests and perhaps someone could comment if they see the same behaviour.
Example:
On my machine running Norton Security + Cylance the default start time for Google Chrome is less than 0.2 seconds.
Adding StopX instead of Cylance raises the startup time to 0.8 up to 1S. so this is an increase by factor 4 or 5.
There is also a massive increase when starting up other apps independent if I start them the 1st, 2nd or whatever time.
For Chrome I took the average of 100 executions.
cheers