WiFi throughput is highly volatile and bursty at times, SQM can't deal with this properly - unless you scale down the throughput limits below the worst-possible values (which, considering basic rates and ramp up times isn't reasonable). You won't be able to achieve good results under these circumstances.
ok yes I think I lower his connection a lot but when he plays he happens to have an upload of 0.35bits and download of 12mbits
he teleports in the game jerks it's unplayable
remember you in wired vdsl2 gfast like united kingdom he has 170 and 45 DL and up is very strong
when I connect in cable on the openwrt router I get 170 and 40 but in wifi much less
suddenly that would be a problem? but the wifi of the first router dde tp link is very efficient if I place it just after openwrt and its qos then I put the second about 15 m below via a socket that should surely be good I think not?