How to speed up Web HTML loading/compiling screen

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:bust_in_silhouette: Asked By XanthosWare

Problem:
I have a simple Web HTML Flappy Bird clone and a Lumberman clone written in Godot. Before the game starts, it has a loading/compiling screen. It looks like a spinning wheel and a loading bar.

Flappy Bird Clone link
Lumberman Clone link

The game loads too slow on Android and IPhones. About 1 to 2 minutes

I looked up the Compiling for Web tutorial and Optimizing for Size tutorial. I tried to create a custom web export template, but it made the game load even slower.

I have trouble understanding the tutorial sometimes. The misunderstandings may be a reason why the Compiling Method does not work.

I also know that heavy assets may also be a reason a game might load slow. That is why I tried a simple Lumberman clone with most minimal assets. It still takes up a minute to load.

Question:

What are the different methods to speed up the loading/compiling screen in my Web HTML game? How do I successfully accomplish the method?