Known issue. No clue what, or even if, there is a solution. As far as I am aware...
author=Marrend There's currently a few workarounds for this. One is to apply at least one other filter to the search. Such as narrowing by engine, or maybe a minimum rating of 0.5, or whatever. Checking the "Download Available" checkbox seems to make the first page load (I have not tried other pages), though it still seems to take about a minute of load-time.