Depending on your budget I'd look for lighter tyres. They will also improve handling and comfort so be sure to start here first.
Next up would be budget wheels. A 1650gr wheelset can be found for around 230€ online. This will save you a lot of energy when getting the bike up to speed after a corner.
Then a set of lighter components. Ritchey WCS comes to mind for value/weight/price reasons. Can be found online in very good deals but don't expect similar gains as with the tyres and wheels.
How do you like the compact chainset for cross? I'd imagine it works for gravel grinding. A lot of entry level crossbikes come with a compact which seems big.
Can you recommend the tyres and 700c Wheelset, the fact being that i spend 90% of the time on the pavement and the rest is gravel/dirt/grass and rarely, if any, mud. I would also like to keep the puncture protection of some sort and go tubeless if there are gains in that. Added to that, i am not opposed to riding in the rain, so it would be nice that the tyres don't slip and slide if there is any moisture on the ground.
EDIT: oh yes, important to note i guess, regarding the wheels... my weight is 90-95 kg and i plan in touring with the bike in a few months.