Basilisk Ultimate with MacBook Pro Scrolling problem

I picked up this neat new mouse but it doesn't work as well with my MacBook Pro as it does with a Lenovo laptop I rarely use.

When scrolling on the Mac, its like the sensitivity isn't there until I try to scroll faster. If I scroll slowly, the page will scroll extremely slowly. Its like there's no consistency, and no link between the scroll wheel and how a web page will move. Is there something I can do to fix this? If not, I'm going to have to return this mouse and find something different.