New K1C but problems with Sunlu High speed PLA?

Had K1C for two weeks and printed a fair bit of stuff without any real problems until I bought some Sunlu high-speed PLA and on printing the same file as I was printing with the Creality hyper PLA with no problems I had four failures most were due to poor bed adhesion but the one i got a fair way with failed at printing internal threads, quite large pitch and it looked to me like it was a case of poor adhesion which could be down to nozzle temp/printing speed

This is an educated guess as I am a novice, so has anyone had similar problems with the Sunlu high-speed PLA?

I had presumed since they are two very similar products the settings should be the same but if anyone can suggest some better settings that work I would be very grateful,…but you may have to explain how to.