I believe you, but I have a standard account and run lots of searches (maybe a couple hundred a month?) without running into this issue. I expect by 'several' you must be doing several hundred searches a month to get that issue, or scrolling through lots of profiles (looking at 10 pages of results for each search).
I often do searches as an exercise with clients live, and I use the filters (location, title, etc.) to try and target results so I'm not scrolling through pages of profiles.