[damien c]

Not used it for a few years, but isn't the free version limited in speed?

It should also not affect the performance of your internet when it's not running unless it's doing something in the background that it shouldn't be.

What games or game are they playing?

I used it for Minecraft and in the end I just ended up renting a server, cost about £40 for a year and was sufficient for the Feed The Best mod and 4 to 10 players.

I do know however that these types of programs are being used by alot of scammers out there and should never be recommended by any company to play games because, all they do is limit your bandwidth and generally increase the latency and allow you to get around region restrictions, and to try and get around anti cheat programmes like in PUBG.