After countless of hours and attempts, I finally broke the World Record by 30 seconds. Although its not my best run, plenty of mistakes and I was aiming for 1:28 but overall it's all paid off.

A really big thanks to srd_27 for the speedrun route notes for this game: https://docs.google.com/document/d/1O8ggpKc2g67mZM1M70qJYgQCt5uRVxIcCqXR8XgRqQY/edit?usp=sharing

I don't know if I even willing to grind this to get lower to 1:28 but at least I have secured a WR.