Once you go stiff, you ride won't be the same. However, expect some better handling. Save the old suspension incase you decide to go back

Lowering up to 1.75 is not that much, the stiffer springs/shocks will help you car handle the regular expected loads.

I do not have that set-up. I also had those consideration as you, that's why I went for coilover so I can change my mind anytime.