Over the years while listening to Wagner, a rule of thumb of sorts occurred to me. And to Bruckner the same applies as to Wagner. Don't play it too slowly because the music becomes, all too quick, a dragging procession in which the pathos rings hollow. For performers and interpreters it’s pivotal do not narrow the potential of a score to the flat flavours of one's own mind. Essential is to let the music speak for itself, as far as necessary and possible.
Also sprach der Hörer.