Builder -

...

Performance Tuning

...

From Confluence 2.2 onwards, our reccommended recommended alterations have become part of Confluence which will massively improve performance of the servlet for a wide range of plugins.

...

Slow Automated Menus

Issue: Atomated Automated menus, created with macros, can sometimes be slow
Affects: All versions of Builder and Confluence

...

{children:page=Macros|first=10}

The actual solution to oversized over-sized menus depends on the macros you are using, the examples shown above are just tricks that worked for us.

...