Hi @Doppel-D...
I don't use SQM QOS in OpenWRT 18.06.5 and the firewall, I can disable it completely for testing ...
flow offloading software, does not exist or is not installed in my configuration ...
I was going to start testing with my old 1043ND, based on this post => Qualcomm Fast Path For LEDE, more exactly here =>
https://github.com/gwlim/Fast-Path-LEDE-OpenWRT
Thanks