So you got Focus working, but have you got the parameters set as well as they could be? And what about those pesky SEP parameters that hide themselves away in the SEP profile dialog?
When using HFR to focus, its all about the stars. See how you can tune your setup yourself offline using the Simulators so you don't waste precious imaging time fiddling around. Replay your own data with tweaks to parameters to find the optimum setup.
My kit: SW 130PDS on a HEQ5 Pro mount, ZWO ASI533mc Pro, 30mm guidescope with ASI120mm mini, managed using Kstars/Ekos, RPi with Stellarmate OS, ASI224mc, bits and bobs for visual observations.