Reduce responsive type scaling

Hi, my type (and therefore spacing) display as intended at most browser sizes, however past a certain breakpoint the scaling breaks – the type becomes far smaller (with some paragraph styles being illegible) and the spacing is massive (as there's lot more space inside the text boxes). Please see screenshots. 

Is there any way to fix this? A breakpoint typeface override etc?

If anyone else has the same issue think I've found the simple solution

Site styles>spacing>page width max
It appears the scaling broke above 1920px as that was the max set page size?