In my opinion, a lot of traditional and more recently composed traditional style tunes, get spoilt by being played too fast, especially in sessions. Playing them faster for dancing, as in a ceilidh, is another matter and fine by me. Josefin's Dopvals is a delightful tune, and I just feel that it loses something when played a bit too fast. 
Your taste. Fair enough. But not necessarily everyone's
Wouldn't it have been more accurate to say "personally, I prefer a somewhat slower tempo" than the dogmatic sounding "...played a bit too fast"?
Also, I don't think Jim B necessarily had dancing in mind when he set up TOTM!
Nor do I
My understanding of the purpose of TotM is that it's for individuals to share their different interpretations and arrangements, not to judge what's a "right" or "wrong" way to do a particular tune, nor to please any particular individual(s). Slow or fast, high or low, bare melody or heavy with harmony, and any and all gradations in between, I believe the point is to enjoy the variety and individuality, not just a particular interpretation.
But I would say that it's certainly not wrong to play something that's named "waltz" by its composer as if it were a dance.
I get a lot more pleasure out of listening to TOTM contributions that are moderately paced, especially if there is an accompaniment to listen to as well, as I can better hear how that fits in.
I like slow interpretations, but I also like quick ones. I don't find that I'm missing any subtlety if something is played quick and well.
In fact, from what you say, I suspect we may differ not only in taste regarding how music is played, but also in how we listen to music. E.g., I don't think of an accompaniment as something separate that "fits in", but I hear the arrangement as a unified whole.
Edited by JimLucas, 13 January 2014 - 05:40 PM.