As of 1–2 years ago (these are very rough figures btw,) Snapchat had about 22% engagement per post, Insta had about 10%, Facebook having less than 1% and twitter having closer to 0.1–0.5% range. I would assume Medium would have close to 10%.
Your stats will also spike very heavily when someone big shares a post, however your average views are heavily dependent on how people actually see your work. Traditionally people rely on subscribers/followers, but there are other avenues as well, such as email lists, sharing to Facebook/Twitter/etc, posting in forums or to listservs, getting consistent crossposting on other blogs, etc.
What that means is, when someone huge shares your post, what you are seeing is a view count in relation to their follower count for the few days that your post was shared. Hopefully, in that time, you will have gained some more followers, but the only time you will ever see numbers like that again will be by either getting featured again, or by gaining an equivalent amount of followers.
Before I had even broken 10 fans, I had a post about Donald Trump break 800 views, and a post about Ethereum break 3000. I only shared them within my network. No large outside publications picked them up. Those numbers are low absolutely, but relative to my follower base they are enormous. Those posts went viral, it’s just that I wasn’t established enough for them to explode. If I’d had as many followers as you, those posts could have had hundreds of thousands to millions of views. Numbers are very relative, and it’s important to understand where they come from as well as what perspective you are taking on them.
The stats you post show that you are routinely getting 10% engagement. That’s pretty normal. If you were paying me to consult you, I would be telling you that you are on the right track and should continue what you are doing.
There are many, many other things that go into followers reading your content though.
Consistency matters when it comes to engagement. If your subscribers hit subscribe because they liked a specific post, but are then served completely different kinds of content from you, they may not read it.
Titles. They are not going to read something unless they think it is about something they are interested in. If you title your work something vague, or artsy, it will not generate enough interest to merit a click.
Lack of header images, or non-compelling header images. Same logic as the title.
Also, some of your subscribers may have stopped using Medium, but never hit unsubscribe before doing so. Some of your subscribers may subscribe to everything, but read nothing.
Because of this, it’s good to do some benchmarking. Find out what the industry standard is for engagement across Medium, and within your particular segment. I.e. “Is engagement on Medium really 10%?” and “What is the average engagement across social media platforms for dating advice?”
If you’re looking to continue to grow, after you establish some benchmarks, you will want to start experimenting with a few things. Titles, images, and subject matter are some. Also, where you share your posts outside of Medium are some others. There’s almost too much to experiment with, so it helps to keep it simple and experiment and track what you are able to manage and understand first.
Good luck.
