OpenWRT as Wifi Client to Starlink very slow

Has anyone good experience with connecting OpenWRT as WiFi client to a starlink router ?

I see very slow speeds - and I mean very slow - and I think it's due the channels we cannot set on the Starlink router for their WiFi.

Wired I get the full Starlink speed over my OpenWRT; so there are no worries. I also tested Client connect on 5Ghz and LAN clients to OpenWRT on 2.4Ghz; the other way around also no big difference but because of channels 2.4Ghz is more stable and higher speeds. This has nothing todo with range as this is a local testsetup close to eachother.