Deactivating all the plugins is not good, you must use those plugins that are necessary for proper functioning of your website. As far as optimization of a WordPress website https://www.znetlive.com/wordpress-hosting/
is concerned, the best practices to optimize it are as listed below.
- Use properly optimized compressed images.
- Don’t use more than 2-3 fonts & bigger fonts on a page.
- Use gzip compression to compress webpage elements.
- Keep coding minimum & remove every unnecessary code from the webpage.
For a detailed procedure to optimize & increase your website, read 5 Effective Tips to Increase Your Website Speed. https://blog.znetlive.com/5-simple-and-easy-tips-to-increase-website-speed/