Ok, the slowdown seemed to just be temporary, might delete this post later.
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Definitely something was up, the server maxed out.

Seems similar behaviour to when someone imports their settings from another instance, which caused a lot of problems during the .ee migration, however I'll see if I can find any other reasons for it.
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Seems like we recently updated to 0.19.3, the instability was probably due to the update, seems stable now
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