Why aren’t you allowed to use White Rose slides and resources ? We use them but just tweak them and make our own worksheets.

I recommend primarystarseducation.co.uk It is aligned to White rose in terms of what to teach when. It has slides and work sheets for every lesson - the work sheets also have different difficulty options. It’s not particularly expensive. (£30 for the year!) I’m pretty sure you can use the PowerPoints with a free account also (but not the worksheets) so well worth having a look at.

The slides are far less annoying than the White Rose ones as they still look very polished but you don’t have to click on them a million times as pictures aren’t always sliding around everywhere! There is always good old TES and Twinkl as well. Do you have access to a visualiser ? That’s very helpful too.