Is it worth bothering with

Just remember, lowering the car ride height means:
a) reducing the suspension travel - whether that’s acceptable or not depends where and how you want to use the car. If you go too far this will be beneficial for track use but not for road use where the bumps and potholes are pretty much a daily experience.
b) you have to use stiffer springs. This means the suspension will feel a lot harder than currently
c) because the car will sit lower it will roll less during cornering and braking, which is a good thing.

Setting up the suspension is a compromise. It also depends what you want to do with your car.

It may help have a read through this thread.