One thing kaz pointed out to me which helped save time was to bait the turret into shooting the bullet straight down so that it would hit the ground sooner.

Control stick (unlocked angles) was used for the first shineboost and the walljump, and dpad (locked angles) was used for everything else. After the first and third shineboosts I walk for short periods, which might have lost me time (generally speaking, walking is slow)

Also, 1 frame pbs are the best pbs