^ No, it's probably just you, I use those tires for everything and have found that they work quite well.
Consider getting a second set of rims and affix hoosiers to them. Honestly, I've never personally done this, but there seems to be a lot of folks happy with this. If you do decide to go with slicks, consider getting the RTD brace (
http://www.sector111.com/products/pe...s/rtdbrace.cfm). Also consider a slight toe out set up. It will make the car a little more twitchy in road courses, but better in autocross.
I have left the most obvious for last. Track time. This car is likely unlike anything else you've ever driven, and it will take some getting used to. Once you master the car you'll find that it may not require much at all. Honestly, I'd start with the hoosiers and brace. I wouldn't mess with the toe until you've learned the car.
My humble 2c
Good luck