Exported game takes long to load

Godot Version

4.2

Question

I have made a horror game similar to fnaf. It has 2.6 GB.

When I try to open the game for the first time (.exe), it takes about 30 seconds to load in. (Almost 2 minutes for my friend who has a worse computer than me)

If I close the game and reopen it, it opens in under 5 seconds.

Anyone knows how do I fix loading time for the first boot?