Performance issue when setting the game to a localized language

I am having weird CPU spikes in some frames (about once every 10/20s of gameplay) that only occur when the game language is not English.

I replicated with Unreal Insights and indeed the problem seems to be in FText and LoadLocalizedResourcesFromPaths (see attached image).

It seems to be happening randomly in different parts of my code, looking like a lazy load that takes a long time to complete synchronously.

This capture is while playing in editor as Standalone game. I have seen the problem also in the shipping build, but the Unreal Insights does not capture that.

Does anyone have faced this before? Any solution or pointers?