Scarlet Nexus takes forever to load maps on my Maxsun B850M WIFI, should I change the PCIe lane mode?

The difference was insane—after tweaking the settings, a 20-second load screen dropped to just 6 seconds. Before this, my Maxsun MS-Terminator B850M WIFI was running the drive in PCIe 3.0 mode, capping my read speeds at 3200 MB/s and leaving me staring at black screens. I tried updating the storage drivers first, but that only shaved off about 1 second, which was basically useless. I ended up flashing the latest BIOS and forced the PCIe slot from 'Auto' to 'Gen4'. In CrystalDiskMark, my sequential reads skyrocketed to 6800 MB/s - 7200 MB/s, and the game finally felt seamless. I did have a scare where the SSD hit 72℃ right after the switch, but installing an M.2 heatsink brought it back down to 45℃ - 52℃. There's a slight coil whine from the board under full load, but it's not a dealbreaker. System info confirms the protocol is upgraded, and RAM temps are steady at 42℃ - 48℃.