the limit of messages per second in the game room

hi , there

my company develop game using photon server and unity pun both free license.
but it sometimes gets really slow, I am concern it if regrading of message limit of room or not.
I can not find the newest reference of message limit in photon server.
what I found is 300msg / second / room , it wrote at 2013 and I also found 500 limit in photon cloud
how about photon server? is it same as photon cloud.

otherwise, I am really concern if it peaks limit , what will happen, will it reject or eject the event from player.


yours sincerely