Well, the BG1 was no designed to be played at level 40.
The BG2 was not either, the ToB was planed to be started at level ~18 - 22... if you want to plan a game at the 40th level mark... you play the BG2 ToB and there you get to stump a bit bigger enemies, that could possibly actually give you a challenge.
Or you could install the EET to an BG2EE game and then go ahead and start the game at level 50/50 in Candlekeep.
The game is not scale-able... intentionally.
Yes, the self made problem disappears when you move to a game that has the HLAs as an intentionally included feature.
Thank you. That was, at least, helpful.
I figure I'll try out a few different levels, see what works for me and what I enjoy for the moment.
In any case, the thread seems to be over and done with. If there's a 'Closed' feature in this forum, you can apply it to this thread.