Here's a look on what things could be better for me next run.
The route: New Neocity, Knoddy's Resort, The Hecklands, Turtle Tops, Tinyhuge Bedroom, Candy Aquarium, The Sun
What went wrong
The Hecklands: Despite entering Lava and Water at under 6 minutes, I lost 5 seconds there. I was minus 8 coming into that level. With an accidental ground pound, I was now only ahead by 3 seconds.
Poor Suntech: Despite entering the sun fight at 11:49.97, my sun time was 5:29.9, losing 2 seconds on my PB. Most of the timeloss was from after phase 1. While I had excellent movement from start to finish, Turtle Tops caught up to me.
Turtle Tops: The turning point came in Turtle Tops, as I missed the 6th firefly. I was still on pace heading into that level. Just like that, it was gone.
How I was able to PB
Knoddy's Resort: With unbelievable movement in the hotel, it sealed a PB. Self-explanatory.
Neodoors: Unlike my 17:24 run, there were no major neodoor meltdowns in this run, including to slide and sun entry.
Good RNG: The crab RNG improved from last run, with no missed gloobee hits.
TLDR: Incredible Knoddy's, Good candy, Average neo and THB, bad hecklands and sun and horrible turtle tops.