How much faster is booting from SSD than from external USB 3.0 HDD

Hi guys, I am suffering pretty long boot times (around 2mins) on my MSI GF65 Thin and the startup of different programs is a bit delayed as well.. . I am booting Big Sur 11.4 from external hdd. If i bought a new PCIe 3 ssd, how much shorter would by boot time be? I really cant tell whether it is my config.plist or the external drive. Thanks for any advice.

Author: @hungry_ape