I have an average off 200-400h/s (depends a bit on what I'm doing on the computer

)
Currently I am using low level port.
Do you think I should switch? Also what would be different if I would use a high power port?
You can check you exact H/s if you press the 'H' key on your motherboard whilst you have the XMR miner running, the website isn't accurate. It should look like this:
https://i.imgur.com/SnGZwka.pngBut at 400H/s I suspect you should be on the medium (5555) port. You can ask them directly
http://labbinarymining.com/contact.html I did on discord, and they told me to set it to High.
No idea about what the difference between the ports is though.
usaly in every pool, first port is for cpu mining, second is for gpu minig, and next one for for minig rigs, and next is for nice hash