View Title Slightly Skewed

Hi

Not sure if this is the right place but I've just created a view as below which looks great and does exactly what I want. It is just that the header on the view doesn't quite line up. It starts OK as below:

but as you sroll down the page and the header sticks to the top of the screen it goes a bit skewed with the headings not lining up, as below:

I'm using W11/Firefox but it also does it on a W11/Edge laptop.

Having checked back it also does it on another view but it's not so obvious so I hadn't picked up on it before.

KR
Mike