Running this from any web host will almost certainly get your server turned off along with a pile of abuse emails. To make it run even faster you should scrub all the Bogon routes on this list: https://www.team-cymru.org/Services/Bogons/http.html

I would also scrub all the sinkholes and captured botnet C&C ip addresses as hitting those will lower the reputation your netblock. List we use at meanpath is: http://mirror1.malwaredomains.com/files/domains.txt https://zeustracker.abuse.ch/blocklist.php?download=domainbl... https://zeustracker.abuse.ch/blocklist.php?download=ipblockl... http://malc0de.com/bl/IP_Blacklist.txt http://hosts-file.net/download/hosts.txt http://www.joewein.net/dl/bl/dom-bl-base.txt http://www.dshield.org/feeds/suspiciousdomains_High.txt http://www.malware.com.br/cgi/submit?action=list https://spyeyetracker.abuse.ch/blocklist.php?download=domain... https://spyeyetracker.abuse.ch/blocklist.php?download=ipbloc...