I'm a fellow user. I just looked at your question and went through the steps that you spoke of. I don't think that there is a way to avoid scrolling down, if you select the ALL filter, after the Unconfirmed/Uncleared filters. You can, however, select the "This Month", or "30 Days" filter afterwards to end up much closer to the bottom of your transactions list.
The ascending sort order hasn't changed, just the transactions filter. I don't see this as a "problem", but perhaps a suggestion. Perhaps IK can change the way that the filter selection view works, based on the sort order selected. Just an opinion.
As others have said, on a PC all that is required to get from the start to the end of the register is to click on any transaction then hit the End key once.
I understood that being Java based, the program should work in the same way regardless of the operating system, so if there is an End key, try that, and if not, see if there is an alternative key which will do the same as the PC's End key.