We're seeing around 20 seconds of lag when adding to a filter that has a lot of entries. The slowness is more apparent in IE, however Chrome and Firefox are taking 10-15 seconds.

The filters we are using are a just to send emails to the junk folder or trash (using Untangle's SpamBlocker and have Zimbra off). When the list populates to (I believe) over 20+ addresses in the filter, that is when it starts to hang.

Has anyone seen this issue before? Is it possible to ram cache the filter file? Where can I find this filter file?