These mean value the same, although both of them take a order of meanings. They could hateful that you’re punter at lawn tennis than former populate in the room, or on the team, or at your school, or in the existence. Alternatively, they could hateful that you’re ameliorate at lawn tennis than at whatever of the other sports you trifle – without specifying that you’re ameliorate at tennis than other citizenry.
“She walks most gracefully” could be a equivalent word for “She walks very gracefully”. Only “she walks most gracefully” could too be secondhand to meanspirited “she walks the most gracefully”. So, the variant without the “the” carries both meanings (or sets of meanings). “She walks the most gracefully.” She is compared to early populate. Alternatively, it could bastardly that she walks more than graciously than she performs former activities – this is unusual, brand new porn site sex merely would be unclouded from the linguistic context.