Here is a stock OpenWrt firmware for R1S H5 with fully working SQM.
WAN to LAN speed is around 31MB/s which is pretty decent I think.

openwrt-19.07.2-r10947-65030d81f3-sunxi-cortexa53-sun50i-h5-nanopi-r1s-ext4-sdcard.img.gz
https://pan.baidu.com/s/1rSFuqF2v3rlDP7cjE0Zacw
code: 736u

I am also have the same issue.

It appears that the kmod-ifb kernel module can not be loaded due to linux kernel mismatch.

The kernel is 4.14.111 a lot of openwrt kmod packages are build for kernel 4.14.156.

Any one knows if there is a chance to switch the 4.14.y version from 111 to 156?

Cheers!