Scan takes long time - can anyone help

After connecting to hackthebox using vpn, when i try to port scan using nmap it takes long time. This happens for all machines. What should i do ? similar for other stuffs too.

Trying pinging the machines, what’s the response time. Also, what commands are you running? nmap can take a while, especially if you run service scanning.

Yeah service scanning took so much time, i m new to HTB how to handle this and get faster result, bcoz for some boxes i can not move further without port scanning

Tbh, you could leverage the HTB api to scan all boxes you might be interested in overnight.