Right samseesam and myself have been messing with slavanap and at first we found it to be very unstable and was a pain but after much messing about we have finally got it stable, it was pretty simple really but on the slavanap forum their was nothing about it.
Install the slavanap and when the server is running click on settings at the top right hand side, If you scroll down to interface and click it you will see a box that you can put numbers in, Put in 1000 which is the default that it says, it has somethin really high and after a hour or so completly eats your cpu to 100%. set at 1000 it seems to be stable here and it hardly uses any resources and also in the sourcecode its expecting 1000 so i assume it was just a typo or mistake by the creator.
Please have a play with this and let me know what you have it set at as both myself and samseesam experienced heavy cpu load till we changed it.
The latest stable slavanap i have placed below