@dos, Are you running the PinePhone's RAM at 624MHz? The difference in load times really shows the advantage of LPDDR4-3200 over LPDDR3-1248 RAM.
@amosbatto Not sure to be honest, I'm using u-boot and kernel from Mobian repos - so I think it's 552MHz since some people had stability issues at 624MHz?
@dos, It looks like people are experimenting with many RAM speeds on the PinePhone: https://forum.pine64.org/showthread.php?tid=9832
According to the poll, 7/16 can run the RAM at 624MHz.