This may sound as a noobish question, and likely it is.
I've noticed repeatedly that my chars perform a lot worse in PTS, compared to what the same do in regular game. I use to make a dummy char with the same stats of one of my toons, to try new features, etc.
Now, my PTS toons show a lack of sustain and a lot of brittleness, irrespective if they are lvl 50 or under.
As an example, a stamblade 25 lvl was killed by the two imps near Ilessan! This has never happened in game (to me, ofc), even with toons under 10.
Anyone with more lore and experience than mine would help me to understand? Thks