OpenWrt poor performance, SFE and mwan3


Last month I was able to successfully configure mwan3 on OpenWrt 19.07 running on a Tp-Link Archer C7.

Unfortunately, OpenWrt gave me very poor throughput on my wan interfaces. It could only reach about 120 Mbit from 300 Mbit connections on Gbit LAN ports.

Searching for a solution, I found OpenWrt SFE, a branch that performed many optimizations to OpenWrt. Flashed the firmware and consistently reached 300 Mbit.

Then tried to install mwan3. It seems it's not working at the moment.

My questions would be:

  1. Is there any way I can improve throughput performance on OpenWrt 19.07? For example by installing this kmods.
  2. Is mwan3 working on OpenWrt SFE?

All sources are from 2019, so they seem a little outdated.