Think with Google has stated that 15 seconds is the average load time for a mobile page. We also know from Think with Google that in 2018 if a mobile page takes longer than 3 seconds to load nearly half (53%) of your traffic will leave.
With all of the data that Google Analytics (GA) collects, it can be very overwhelming to sort through the information in front of you. One way to make your reports easier to understand or get the information you’re looking for is by utilizing Dimensions. Dimensions allow you to delve into your data by parsing out the information you would like to see.