It means it improves it for itself, bringing it closer to native OpenGL implementations since in that case it was pretty bad, not that it's 10 times better than

It means it improves it for itself, bringing it closer to native OpenGL implementations since in that case it was pretty bad, not that it's 10 times better than native OpenGL. The description actually says that it borrows heavily from radeonsi (AMD's OpenGL implementation), so it means the technique is already used.