Incidentally I did add this advice to the BMS Manual. You’ll find it in the Configuration chapter, on p36:
Anisotropic Filtering
This enables Anisotropic texture filtering. This is another BMS UI on/off setting which you may find it is
better to override in your graphics card control panel, where you will have more customisation options
available. Newer AMD cards especially benefit from this as leaving the BMS AF setting selected can
result in a moiré effect near coastlines. Forcing AF on (up to 8x) in CCC resolves this issue.
Now you’ve got that working it might be worth looking to see if there are any other tips that might improve your experience.