Autopilot Cruising Speed Too Slow?

I’m a bit confused. So we actually have control over autopilot details? I thought (perhaps incorrectly) that MSFS2020 completely nerfed autopilot, such that the only way to use it was to use the AI assist (I don’t like that…normally for long flights, I take off full manual, reach cruising, then set on the AI).

So there’s a way to use autopilot without engaging the “Flight Assistance - AI Piloting” ??

I only fly using external view, since I cannot see anything when using cockpit view - no horizon visible, but also no meaningful controls visible. I’ve obviously not played the game nearly as much as others. Looking for genuine help, not criticism.