1 inch makes a big difference.

Might be hard to tell, but I lowered the BoltEV by one inch all over.
Put shorter and stiffer springs on front and back.
To be more precise. I put progressive springs on.
This means that the more they compress, the firmer they become, they do not have a linear compression like the stock springs did.

Night and day difference. I am now happy to sell Marty.
The car just corners so much better. Its mostly flat and controlled all the way through the corner, rather than the point and hope approach, all 4 tires now stay planted and you can smoothly apply power from the apex of the corner and the car will just pull right through and accelerate cleanly out of the corner. Its gone from meh to thrilling to drive.