Suggestion: Navigating Vocab page
The Vocabulary page will also be redesigned in the upcoming update. That's something we are working on.
Beside "filters" you have the options "starts with" / "ends with" / "contains" / "phrase containing" and "translation containing". If you want to see the words starting with M you can just select "Starts with" -> M
If you want to see the first Lingqs you created, you can press Filters, then "Sort by" -> "Creation Date" as you wrote. It is true that we must click several times to reach the first ones, because the latest ones come first. Usually I select "Show" -> 200 (instead of the usual 25) so that there are fewer pages to click. It does not solve the problem completely but it ameliorates it.
Yeah, I use a lot of those filter and sort-by options too. But I've got something like 20K+ LingQs for Polish and trying to go through them is just a bit of a nightmare to navigate without proper buttons on the bottom of the page.