In my latest Best Practice article, see how large performance gains can be made with very little effort. Just think logically about what you are trying to achieve and what elements are actually necessary for the calculation. Read more here:

Formula Optimisation in Anaplan

If you have missed my previous articles in the series they can be found here:

PLANS - This is how we model

Best practice for Module design

Best practice for Dimension ordering

Formula structure for performance

Reduce calculations for better performance