As a native English speaker who is widely read, and who writes on a daily basis, I will make short work of any editing task that is put before me in order to produce a final document that is concise, eloquent, and absolutely free of errors in any category.
I proofread and rewrite with astonishing speed due to my use of speech to text software as opposed to keyboard entries. Given an opportunity to demonstrate my skills as a seasoned editor I can assure you of an extremely rapid turnaround.