@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.
@dos, Could you post the output of "sudo hardinfo -r" for the two phones? That would give us some benchmarks for the CPU and GPU performance.
Does "lshw" show the RAM speed on the PinePhone? (I'm assuming this is not the actual speed, but the top rated speed of the RAM stick, but I'm curious what it says.)
@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.