Due to increased network speeds and router design with current Gargoyle/OpenWRT firmware the router through put in most cases is limited by CPU performance. To increase router network speed/performance one solution is to disable bandwidth monitor (bwmon).

Note: Beware that disabling bwmon you will lose the ability to monitor/track bandwidth data, which will probably disable Quotas and all bandwidth graphs as well.

SSH into your router and comment the following commands

/etc/init.d/bwmon_gargoyle stop /etc/init.d/bwmon_gargoyle disable

/etc/init.d/bwmon_gargoyle enable /etc/init.d/bwmon_gargoyle start