Do you have a road bike that does not have the issues you are noticing?

Saddle setback, at its base, is a measurement, from a Plumb line through the BB axis,
to where your butt contacts the saddle can be measured.

and compared to the Regular bike that is fine..

Old guy, I deal best with things in front of me not on videos.

maybe you are just turning too high a gear in quest of 'a better Work-out'.. IDK.