what we have noticed if you have 5 players
for example we have max bots set to 30 and min 10, so we have 20 with 5
a new player joins who is dead and immediately the bot number increases to 23 bots which then causes stutter.
what it should do is wait until the new player spawns and then add the bots.
this is a definite cause of stutter that we can reproduce.