thanks to the new possibility to get the LTS images in exchange for a membership fee, I finally got ahold of the VyOS 1.2.5 LTS release. yay!
I saw slow speeds (inbound, connected to ISP using PPPoE on g.Fast). I was able to tweak some system settings according to Dmitry’s post in this THREAD
the settings work just fine, throughput went up to the maximum speed. unfortunately, these tweaks are not persistent. after a reboot they are all set to zero again. is there a possibility to set these values permanently? thnx!