I will be honest I have taken her for a few naughty laps of the block every other day to keep her ticking over. My full test ain't till the being of next month

To be honest it doesn't feel uncomfortable but I won't really find out if its to low for me before I get a proper ride out of her I guess.
I am a mechanical retard so obviously a zxr 400 is the ideal bike for me

Just wondering if someone here has had their zxr lowered or if someone could enlighten me as to what the effects of lowering at the rear are. I was going to leave it if it wasn't uncomfortable but don't want to leave it if it has a negative effect on handling.
Thank you