> It feels quite slow
It definitely is. The extension-based redirect in Safari is also unreliable. Furthermore, many of my searches (and others', apparently) unexplainably defaulted to Groningen in the Netherlands, even though I'm nowhere near the place.
I ended up not renewing my annual subscription. Since then, I vibecoded a small userscript that replicates domain ranking for DuckDuckGo – plus DDG already lets you turn off ads natively.