Hi Ben and welcome.
Glad you are enjoying your new scope!
What eyepieces do you have at the moment? That will help to clarify. If I am not mistaken they come with a single 25mm ep, that would give at 2000mm fl 80x. That is OK for most deepspace objects. If you obtained a 15mm or thereabout ep that shoud yield 133x which makes planet look better and can help with the smaller DSOs.
Pushing much beyond that will require good seeing conditions.
As to choice of eps, the more expensive ones have wider apparent fields, which can be a great help at shorter focal lengths, high power plossls can be really hard to use at the eyerelief is very short and exit pupil is tiny.
Malcolm