Perhaps other views are more touch-friendly, but grid-view is almost impossible to work with on my 15" laptop touch screen. It’s not even a matter of size. I can enlarge the screen so that cells are larger than my finger, but that doesn’t help. The scrollbars pretty much don’t work at all when dragging them on screen, and I can’t swipe through to unseen areas of the grid. Basically, it’s just not built for using with touchscreen, but it should be. Don’t think just in terms of mobile or small tablets. Recognize the need to use this on large touch screens as well. It should just work.
Don’t know which browser you’re using but I had a similar touch requirement and found Firefox to be much more capable than Chrome.
How did you resolve this? I have the same issue.