First I'd like to say so far TE4&ToME4 seems to be very promising roguelike engine/game, with great potential.
So far I've completed it once in b18 and now progressing in b20b, and enjoyed it a lot.
However there's something that's bothersome in otherwise great experience: The speed, or lack of it.
I see nice progress in moving around/mouse cursor movement, UI smoothness and just general gameplay from b18 to b20, but it still could be better.
I've played it with 1.1GHz PentiumM and 1.8 GHz Core2 Duo, the faster is obviously faster but still not a rocket.
Especially starting the game, loading game and changing resolution/graphic mode takes ages.
Saving is quite slow too, but bearable (if not done in the background)
So maybe some development work could be directed towards making these often-occurring operations faster, so playing would be more enjoyable.
Of course optimizing is not so fun as adding features
