I think you're picking the wrong shows.
I see you have Nirvana in Fire on hold - you do realise it's a show that starts truly shining well after 20 episodes (I'm not joking)? It's not something you can judge after 1 episode so you need to commit to it if you want to enjoy it. And do take into consideration that while it's a phenomenal show, it was released in 2015 and 10 years is a lot when it comes to production value.
If you want to watch something short and not gaudy, I recommend The Ancient Detective - it's low budget (and slightly cheap looking) but fairly well-choreographed, features a set of unique and morally-greyish characters and the plot won't fry your brain.
For high-quality production and high-quality drama overall you might want to check out Joy of Life - but it's 46 episodes so a little on the longer side.