Here are some speed optimization best practices.
- When you’re uploading images, the max size should be 1600 pixel width by 900-1200 pixel height, and the resolution should be 72 pixels per square inch.
- Reduce the number of videos on the website and always host them on somewhere like YouTube or Vimeo. Instead of uploading them directly to your media library,
- Reduce the amount of plugins that you have if possible. Use single plugins that can manage multiple jobs.