As Tuco has asked, we will need more information on your PC specs and what type of drive you have it installed on.
Ideally, with all modern games should be loaded onto an m.2 or SATA SSD as the older spinning disc Hard Drives will take a long time to load games.
My BG3 is loaded on a SATA SSD and I am loaded up in about 20seconds (though I haven't put a stop watch on it). If I put BG3 on my m.2 I can imagine it would be a little bit quicker.
