Which option do you use when you use nmap?

There are -sT, -sV -Pn many options in nmap. but -sV option is so slow.

Anyone knows how to get result fast by -sV options?

Also, I want to know which option do you use when you use nmap.

Sorry man, I don’t know what to give you as an answer but I definitely wouldn’t recommend -sT cuz it does handshaking so it takes awhile.
-sV is slow as it is an udp port scan, but considering you only got -sT as an alternative, I suggest you be patient with the speed and continue to use -sV