Well, first, switch to solving the cross on the bottom. I couldn't solve the cross during inspection when I solved the cross on the top, and can't even now.
When you're used to that, solve the cross (in your head) without doing any moves. Close your eyes and try to solve it from memory.
Do this a bunch of times. This will help you on your look ahead.
See where "helper" moves come in. While solving an edge, see if that turn can help you solve another edge with less moves. Also, try and solve your edges relatively to your other ones. To practice, just apply these things to your normal solves. It may slow you down at first, but when you get used to it, you'll get faster.