Garry's mod massive server lag

Hello everyone, I’m currently hosting a GMOD server, created through steam CMD and every time I go into a coop map my ping sky rockets to about 200, with unplayable lag.
I’m using a I7 6700K CPU and I’m getting over 100mbps in downlaod and 5 in upload.
If anyone can help that be great.

Upload speed is pretty important, I’d say that’s your bottleneck.

What can I do to fix it?

get better internet

I’ve ran other servers before such as Rust and Minecraft and never have I had so much lag.

How much upload speed do you have? The 100mbps download does not serve literalmente. The most important is the climb, if you have low climb speed you should lower the tickrate to 33 or less.

upload speed*
But yeah, according to Valve’s official guide to optimize a server you need for example 1708k uplink for 32 players in CS:S, but as this is Garry’s mod i’d estimate a bit more.

Sorry for my bad English, but I’m Argentine and I do not speak much English

In sandbox there is no speed limit for certain people on a server, it all depends on how many props, entities, etc. are running at the same time.

If you have high ping when there are many things, you could adjust the rates to limit at a speed