One of the most frustrating aspects of working in lists is the pause as each tranche of records is loaded as you scroll. Depending on your broadband connection speed, this can leave you sitting for several seconds to an eternity while the next batch loads. If lists were programmed to begin loading the next tranche of records as soon as you start scrolling (rather than waiting until you reach the end), the wait time could be significantly reduced.
For reference, I'm currently working with a list of about 900 people, and am scrolling for it to load about ten at a time. Unacceptable.
This is extremely frustrating. Based on the size of the list, the tranche of records that loads each time might not even be that large! This really makes the task of working with lists a huge pain.