I ran XMP when initially setting up the new components [CPU, mobo, RAM]. That was a quick run to get Windows up and running. XMP is only 3000MHz for the kit, well short of where these E-die kits are capable of with a little tuning, so I never had intentions of running them at XMP for long, which is why I went to OC.
If you don't want to mess with OC'ing the RAM, you should just buy 3600MHz rated RAM: https://www.amazon.com/dp/B082DGZJ9C/ref=cm_sw_r_cp_api_i_kZ8HEb6AZMF9V