what psi you put on Front and Rear?

as for washboard ad dirt road you may want to airing down a bit (about 30
psi) for comfort and extra traction, but you will need a 12V portable
compressor to re-inflate them after.

https://www.offroadxtreme.com/engine-tech/wheels-tires/tire-pressure-does-airing-down-really-matter/