I'm pretty sure I know a good chunk of how the algorithm works now, personally.
It lets me hit trending with a once a week updated series, pretty consistently.
If you have an already popular series, you can be lax with your uploads. Posting every day is more important when you're starting out and have less options. Just saying this bit so that it's acknowledged that popularity gives you more freedom, as it does in real life.
For you, the biggest thing would be having a more interest-inducing cover. In other words, you need a scribblehub-competitve cover. What's scribblehub-competitive? Go study trending and observe what's the most common feature of the top 50 trending novels.
Your summary... you could probably take out the first paragraph, but I personally don't think blurbs make big differences in niche genres.
A note on your responses to having daily chapters. And I know it's going to read brutal, but imagine that my tone is relaxed. I'm rooting for you to succeed.
I personally dont think you need to go daily. Three days a week is fine. That said, you were pretty quick to shoot it down with your excuses. You want to succeed and get some eyeballs? Your excuses aren't going to work. None of us need to know why you can't do the daily upload, and the faceless readers don't care. This isn't a receive advice-and-justify-why-i-cant-follow-the-advice thread.
If you want to win, your best chances come with playing the metagame that's developed around these sites.
So here's the advice that most of the big guys would suggest: build a backlog. Write out your whole novel if you have to and then upload it in such a way that you play to scribblehub's algorithim or royalroad's. Even a slow writer can win with preparation, strategy, restraint, and patience.
If you dont want the backlog, then you need a more eye-catching cover to maximize the chance of click-through when your weekly release pops up on latest.