I slipped up when I asked if Bernstein had conducted the "Enigma Variations" in New York. I often say that YouTube these days has practically everything you want to see or hear and sure enough, it has an NYPO performance given in March 1982, a few weeks before he conducted it in London. One of the comments under the broadcast says: "As the old joke has it: C'est magnifique mais ce n'est pas Elgar." Another comment states: " Horribly vulgar, tacky, mawkish interpretation" while another writes "even worse than the BBCSO recording" with 'Nimrod' sounding "like Mahler on opioids" ...
https://www.youtube.com/watch?v=IdQhdlCjlL0
Also on YouTube is a Bernstein / NYPO performance of Elgar's "Cockaigne" Overture from 1983. I fear that has some similar comments under the video but being "too slow" is not one of them. Quite the opposite in fact! ...
https://www.youtube.com/watch?v=lOlHHrc49E0
Going back to a non-British performance of the "Enigma Variations," here's what I think is a first-rate performance from Yokohama, with a young Japanese maestro, Kahchun Wong, conducting the work from memory and very well too ...
https://www.youtube.com/watch?v=oDcv-QCB-SE&t=94s
No adverse comments under this video!