And what I don't understand: am I the only one who noticed massive lags not being in combat?

I have to add to this discussion that I noticed immensive lags during multiplayer while building and walking without combat (and without having been in combat at all).

We have been using 0.17.4x prior to upgrading to 0.17.54 (I think), where I started to notice those immensive lags.

Again, most ...