I have been seeing this a lot lately too. I don't mind 2-3 seconds of waiting before the search results pop in, but 5-10-second waits are becoming the norm. In addition, I've seen probably a dozen times in the last week where the results don't load even after 20+ seconds. At that point, I refresh the screen and see the results after about 5 seconds.
My issues may stem from my environment, though. I use Kagi heavily as a SWE, and I'm frequently on my company's VPN when I do the searches. Willing to provide more info if the team thinks it may be related. Also on macOS using Arc browser.