Symptom

wxMaxima sometimes hangs for a several seconds once in the first minute.

Suspected diagnosis

wxMaxima delegates some big tasks like parsing Maxima’s >1000-page-manual to background tasks, which normally goes totally unnoticed. In the moment the result of such a task is needed, though, it is possible that wxMaxima needs to wait a couple of seconds before it can continue its work.

Possible cure

Wait a couple of seconds.