I have the standard shocks on the 35 mm lower Eibach springs, not noticed any grip problems at all. I'd go as far as to say that it's improved.

I too use my car daily, do some light competition work with it & haven't found the set up to be too uncomprimising but then perhaps I put up with more spinal abuse than most.

Perhaps your grip probs are 'cos you are driving faster as you get more used to the performance &/or your tyres need looking at.

Which tyres do you use?