Brand nee MacBook Pro, lagging while making simple image adjustments

Hello, I just purchased a 13" Macbook pro 13" (4 port model, 10th gen i5, 16 DDR4) 
Photoshop seems to be running exactly as I expected in most areas however when I make simple adjustments to colour/hue/saturation photoshop locks up for several minutes. 

I considered that it was potentially the file I was working on at the time but even during the tutorial image (adjusting jupitor in the astronaught) scene there was a huge pause in the software. Over two minutes, then evetually it gets back to working. 

What's causing this issue? I honestly didn't expect my laptop to have these problems, it's less than a week old. Any advice? All background applications were stopped, almost fully clean laptop apart from word, lightroom and photoshop.