After the last update I was hopeful.
Today I stopped the time (normaly I do other things in the meantime) - 135 seconds. I think this is always too long.
I do most of my LingQing around midnight (GMT+1, so probably the same time zone as you) and last night (~15 hours ago) it took minutes to load the Russian LingQs (which weren’t very many, just from a short audio clip of one minute).