I am in the same boat as you I have just recently thrown in some cardio boxing workouts into my regimen and man what a difference it can make in your life. When you are lifting weights it almost trains your body to be slow, heavy and sluggish. At least for me it did. There are several boxing...
another vote for sarms. Most every other cycle i have taken has slowed me down more than anything. usually find myself out of breath faster and slow as shit