Well, bounce rate is show about how the conversion rate of your visitor. If you have three visitor just open your website and quite it. the bounce rate should be 100% percent. The most of new blog go from 50 to 80 percent, and quality blog from 30 to 50 percent. So, to improve more quality bounce rate is rate dial with better SEO optimization. here what you can do
1. you need quality content
2. use internal linking strategies
3. more than just a post
4. loading speed should improve