The quality contrast between blu ray and DVDs is massive if done properly. As I said I only encountered it two times so far and I guess this was simply a cheap money grab and taken from the DVD or even worse sources yeah. Mostly noticable if they out multiple movies onto a single disc, but with all the other stuff blu ray is way more crisp than dvd. Maybe your tv is just better in upscaling. I guess especially for animes it’s easy to do so
Do you have some movie recommendations? I’m also happy to hear about older movies (60s 70s 80s)