What is the problem with the blade?Anything else will or this is good as it gets
Nope. Been mowing as a business for almost 10 years, used a lot of different blades. A blade is a blade, is a blade, is a blade. Well, almost. Get a standard high lift blade, keep it sharp (properly done, no rounded corners at the tip edge), and BALANCE it, and provided your motor up to spec, you will cut anything the mower will go over.