Site Blocking on webshield make some delay

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Hi.

I use google chrome and RamDisk program.

I am using site blocking for AD banner.

site having blocked keyword is delayed by site blocking.
almost content is appear and the rest is appear late
or
loading sign of google chrome maintain for 10seconds.

my webshield.ini which have list of blocked site attach.

and I am visiting site below.

www.naver.com
www.daum.net
www.hani.co.kr
www.khan.co.kr
kr.wsj.com/home-page
biz.heraldcorp.com
www.dt.co.kr
www.zdnet.co.kr
www.it.co.kr
and so on..

directly accessing on blocked keywords, loading delay is same.

then, turn site blocking off, loading delay is gone.

Checking this problem, if there is, please solve it.

Thank you!