If you have checked your blog's speed using the Google PageSpeed Insights tool, you might have got many suggestions to improve speed. I also got many suggestions to improve my blog's speed; like Leverage browser caching, Eliminate render-blocking JavaScript and CSS in above-the-fold content, Optimize images, Minify JavaScript, Minify HTML, Reduce server response time etc. Unfortunately, we can't fix those since we have no control over the Server. [After I changed to Emporio theme I am having issue with mobile version only.] Here are some tips which may be useful for improving your blog's speed.[Emporio, Contempo, Soho and Notable]You may upload all images directly through the Blogger draft. It means that if you use any third party images, first save them to your computer, and upload via the Blogger draft. The images will be stored in your Album Archive . You can use Ms Paint to resize and crop images or even changing the image formats.: On your draft page, click on the "picture" icon on the top. Now click the upload button and choose files from your computer.Reduce the number of images per post.Reduce the size of images if the original size is much larger.Use CSS instead of images when possible.If you use an image as your blog's background, no doubt; it would take a long time to load. So use either a color as background or pixel patterns with few k/b in size (The Patterns can be repeated; horizontally, vertically or as tiles). Use small-sized images for Header also.: From Blogger Dashboard select Theme. Click Customise and select Background. Remove the full width background image, and upload your image which is of few kilobytes in size. Make sure to select the tiles option.: After removing the full width background, click Advanced and select Bodu. Select your background color and click Apply to Blog.Put all custom CSS by going to the below link:Blogger Dashboard → Theme → Customise → Advanced → Add CSSTry to reduce the number of third party gadgets/widgets which contains Javascripts.Blogger Dashboard → Layout - Add a Gadget - HTML/JavaScript. Place your code like this: //<![CDATA[your code//]]> Below tips might be useful for older Blogger theme users:It is recommended to use only five-seven posts on the main page.: Go to your Blog's dashboard and select Layout from the drop down list. Click on Blog Posts → Edit. Now change the number of posts on main page.When you create longer posts, use "Read More".: On the Blogger draft page, place the cursor below your first paragraph (or on the spot where you want the "read more" link to appear) and click on the Jump Break Icon. You can also change the "Read More" text by editing the field next to "Post page link text". See the above screenshot.