The anti-aliasing isn’t perfect, if you want to improve it you can render at a higher resolution than your final resolution, then if you scale it down in Photoshop or whatever it will look better (supersampling).
The anti-aliasing isn’t perfect, if you want to improve it you can render at a higher resolution than your final resolution, then if you scale it down in Photoshop or whatever it will look better (supersampling).