The good news is that this is something that Adobe is aware of, and in a blog post on their website, Adobe Photo Product Manager Tom Hogarty acknowledges these complaints and have stated that speeding up Lightroom is one of the priorities that Adobe will be addressing in the near future.
According to Hogarty, “I would like to address concerns recently voiced by our community of customers around Lightroom performance, as improving performance is our current top priority.” He also adds, “We already understand many of the current pain points around GPU, import performance, certain editing tasks and review workflows and are investing heavily in improving those areas.”
Exactly when these improvements are expected to be introduced remains to be seen, but if you use Lightroom heavily, then we guess this is an update that is most definitely worth looking forward to whenever it is released.