Touchscreen response speed of lumia 620 is slower than my old lumia 710

I mean, it turns yellow only on the part where I frequently hold the phone. The rest are fine. It's just that the material itself seems to be easy to get all the dirt on. If you're worried about it getting dirty, get a Black one or Lime Green which is glossy so chances of getting dirt on it is pretty slim. If you still want to get a white one, get a case for it ;)

Maybe wash your hands more often, hahahaha :D *joke*
 
I actually think its the WP8 itself being somehow slow in scrolling. Before I bought mine, I went to the Nokia Store and tested all including the brand new 820 and 920. Seems like the scrolling is much faster in WP7 than it is in WP8. I don't know whether Microsoft deliberately slow down the scrolling speed in WP8?

I second all of this.
 
i have seen this problem
scrolling lags when you slowly move finger
disabling magnifier little bit improves scrolling but still wp7 was way smoother