The choke in the server makes the game unplayable.
Bullets don't register, and people are able to kill you without you even being able to see them.
For example, someone could peak you at short to top mid and shoot a good 2-3 bullets prior to you even being able to see them on your screen and therefore they have an advantage over other players.
I have no idea what could be causing the choke 15%+ and sometimes 2-5% loss on the server, but whatever it is, it needs to be fixed.

I'm 100% sure this is not to do with my connection, as when I connect to other servers of FFA DM nature, I find 0% choke or the occasional 1-2% but that rarely happens.