Netplay is slow with 3 people (Melee)

[smashererer]

So I have a group of friends that play melee online with eachother. It runs 60 fps when playing with two people, but when we play with 3 people it goes to 50. It slows down the gameplay and is extremely frustrating. I went through everyone's settings and they're all setup for netplay and are identical. We all have good processors and gpus (we can run gta v fine for reference). We're all running 4.0-6554 by the way. Help please? Thanks in advance