I've got a GTX 1080 and a i76800K, 16GB ddr4 3200MHz ram. Yet fortnite and windows still take ages to load/boot up. I have windows on a ssd. However I'm looking for something a bit faster. I've heard about m.2 but I'm not really sure what all the variations are. My budget is around £200-400 for 500-1TB of storage. I would prefer faster and less than slower and more (within my size range). Please may someone link some products on Amazon for me to look at. Or explain what type is best. I'm looking for speed in terms of opening apps (games) and booting windows. Appreciate any help !

