How to turn off the built-in personalization for Unified search?

Hi

We are using the unified search for the public page search, today we noticed that the search results starts to differ when the visitors login.
I don't find any settings for how to turn this behavior off and we are using the filterForPublicSearch set to true on the GetResult() method.

Also one behavior that I noticed was that SearchClient.Instance.Statistics().GetDidYouMean(query) only gives back results if the user is logged in.

Feels like I'm missing some major concept here and the search get really bad for the logged in users right now.

Any tips on how to change this?

We are using CMS Find 16.0.2

BR
Mikael