You are free to ignore the two suggestions below if you write long blog posts, but realize you may be turning off a lot of potential readers if you do so.
If you plan on writing long posts for your blog, here are two suggestions I encourage you to consider:
1. please truncate – https://dictionary.cambridge.org/us/dictionary/english/truncate the posts where you can, and
2. put a limit on how many show up/page. I know a blogger who has no problem writing 10,000 – 13,000+ posts. They don’t truncate them so you have to scroll through a lot to get the next post. In addition, they don’t put a number/page limit so you can scroll through a lot just to find a post you are looking for.
You may not be able to truncate on your main blog page, but you can limit number of posts/page although this blogger has chosen to not use that option.
I copied/pasted a post to see how long it was, then deleted it. It was over 13,000 words long and that’s not counting images that made it even longer.
This is a popular blogger, but I rarely read their blog posts because they ignore these two concepts. My suggestion to this blogger is to do what another blogger I follow does. He breaks long posts into a series, usually 3 – 4 posts. I follow the blogger as sometimes they have a good long post worth reading as it shows up in the short version in WordPress Reader.