
I liked the original premise of the manga but the King is fickle and seems to only seek the Consort for sex. It doesn't seem like he actually love him but just someone he adores like a pet. Also the queen (?) doesn't seem to be evil but rather jealous. I don't want him to be reduced as a tool that helps the MLs fall in love.

I read this knowing the ML is a stalker but damn i didn't know he'd be a full on stalker. I thought he just followed her around and take pics, but he really kept her personal belongings in zip locks and bugged her phone and room. If I was the FL ,I would make a police report right away and go to my parents house or something. Like I understand they'll end up together so the FL shouldn't be so scared but it just doesn't feel realistic.

Is the story still worth reading? Did the story/translation quality drop?

Translation quality maintains, thankfully. The story might be a bit wordy or boring in some arcs, but honestly the world-building is as interesting as the actions.
Is it worth reading? DEFINITELY.
Is it worth reading NOW? Depends if you can be patient enough to follow it chapter by chapter. As of the current chapter 122, we are in the middle of volume 10 of LN, and we still have 11 more LN volumes to go.
If you can't stand cliffhangers, I suggest you read it by arcs. Some arcs can be purely world-building, and some others can be chock-full of actions.
OR. You can just watch the anime. While it doesn't fully show or follow everything in LN or even manga, the basics are all there, and they're faithful to the main plots. Currently only ONE episode left in season 3, I think.
Props to the author for making the story interesting so far. Its cool how the story involved baseball and a MC who has a super power but not OP. I wonder why he chose baseball out of all sports tho, like if he played chess or went on those shows where U guess the right answer I bet he could've had more success and money.