Because when that is enabled, the input is being run thru effects in realtime. I believe you can sing into the mic and hear the effects even if record is not enabled.. may have to double check that, but I think it does. Even if it doesn't they are taking up RAM and processor attention.
Look at it like It's another service running, and under ASIO which means it is requiring more attention to begin with from the system in general.

So if the computer is running those effects the whole time it IS a load on the system. Maybe switching to a different 'thread' for the processor will help, maybe not.
Only explanation I can think of.

Last edited by rharv; 05/03/10 02:53 PM.
I do not work here, but the benefits are still awesome
Make your sound your own!