For optimal experience, I think the settings you have are fine. There is not much fine tuning with the classics. There are however, unofficial patches available to enhance the experience for modern systems, including true widescreen support.
https://www.tombraiderforums.com/sho...d.php?t=208759
If you happen to have TR1, you should play with barracuda415's atipatch:
https://www.tombraiderforums.com/sho...d.php?t=214779