Proper Nmap High Speed Scan

sysctl -w net.ipv4.ip_local_port_range="15000 61000"
sysctl -w net.ipv4.tcp_fin_timeout=30
sysctl -w net.ipv4.tcp_tw_recycle=1
sysctl -w net.ipv4.tcp_tw_reuse=1 
sysctl -w net.ipv4.icmp_ratelimit=0
nmap -A -sS -sU -Pn -p- -T4 address