You need your wheel alignment done. Sounds like the toe is out.
If you lowered it and never had the geometry done this will be your problem
Thanks for the reply Dave, it was lowered before I bought it but have had the wheel alignment done a few days ago and re-checked, all spot on. Is much better after alignment but I still feel like it's a little skippy.
Check your tyre pressures as well.. My handling was thrown out from under inflated tyre but can't tell if there low because the low profile on them..