So until now I always had closed ports because my ISP put me behind a CGNAT and can’t open ports (No I don’t need a vpn because no one cares in my country) Over time I just accepted that I cannot open ports but recently saw that if I tell them they will take me out of the CGNAT and be connectable, now I’m waiting for that.

Do you know what speed can you have before and after you open ports and more importantly what percent of peers have their ports open?