Give priority (not bandwidth limit) to desktop PC

[lambrosgg]

What I want to achieve is giving priority on the internet connection to the PC I play games on. Many commercial routers have that function (giving priority to gaming devices) so I guess it should be somehow possible in opnsense.
I tried the suggested solution I found here, making 2 pipes (up-down) 4 queues (90%up-90%down-10%up-10%down) and assigning the local ips with rules: Desktop PC gets the 90%up and 90%down and everything else the 10% ones.
This works, but it just limits the bandwidth to 90-10 split. I could do that with netlimiter, no need to mess on opnsense... That means even when another device uses very little bandwidth, it still gets priority and I have packet loss in games. I tried CoDel and PIE, no difference.
Any help or guidance is appreciated, thanks in advance.

[lambrosgg]

no one?  :(