Choosing the right router for the job

Hi everyone!I recently successfully traced some network issues I was having in Counter Strike back to my QBittorrent client having too many open connections. Global maximum was set to around 500, with a 100 max per torrent. This caused major jitter and packetloss in-game.My current router is an Asus N18U which has Asus-Merlin on it.The issues kept coming back even with a smaller number of open connections to the point I had to shut down the client.I can't remeber having these kinds of issue on Windows (current system CachyOS wit latest kernel), but I can ne wrong.For what kind of specs should I be looking in a router for this kind of task? Would a MikroTik hEX refresh (upgraded RAM and CPU) be enough or overkill?Thanks!