Slow speed on gravel bike. Advice?

Yeah those are the ones. How are the gp5000 on gravel?

Everyone raves about the pathfinders, but they are impossible to get right now it seems. Cinturato H also seem well regarded.

The main gravel here is maybe some rail trail type surface. Not riding single track or mtb with this bike for sure. I have another steel flat bar bike with 2.35 for that sort adventure.