Need a good traffic script.

[Dikke_Banaan]

I'm looking for a good trade script. I tried already a couple, but they all slow down my site with seconds.
Is there a good one that won't slow down my site that much and which i can install on my own server.
Script must count unique visitors too.
The site receives about 50.000 uniques and 150.000 pageviews daily.

[martinsc]

http://www.arrowscripts.com/

[VicD]

I'm looking for a good trade script. I tried already a couple, but they all slow down my site with seconds.
Is there a good one that won't slow down my site that much and which i can install on my own server.
Script must count unique visitors too.
The site receives about 50.000 uniques and 150.000 pageviews daily.

In that case buy ATX from arrowscripts