On a site with many listings, prices on the search results page can take a long time to appear or seem stuck loading.
Why this happens. For every property shown, the system sends a separate price request to your channel manager, all at once. Channel managers limit how many requests they process per minute, so with many listings the requests queue up and prices trickle in over a minute or more.
This is a known architectural limitation. Improvements are in progress that will reduce duplicate requests and speed up pricing across the board.