Here's what's helped me.

1) don't lower the seat unless your hips are rocking side to side. Raise the seat until just before your hips rock.

When using shims, remember that the thick part of the shim goes to the inside of the foot, not the outside. It's counter-intuitive.
There is a maximum length that you can extend the pedals. So, 20mm on the extenders, plus so many mm's on the washers. Read the info at the site below.

I have no affiliation with the products below.

2) shim the cleats for the outside toe burning

https://www.bikefit.com/p-7-8-pack-l...at-wedges.aspx

3) use pedal extenders. I have a wide "Q" factor, but that's for another day.

https://www.bikefit.com/p-25-1-pair-...extenders.aspx

4) use pedal washers for more extension, if needed

https://www.bikefit.com/p-66-25-pack...r-washers.aspx