In most cases, the homepage is the first one your visitors see. So you might have designed it to show off everything you can, in order to impress new visitors. Widgets are cool, right?
But the more widgets and content you have on the front page, the longer your site takes to load.
Keep in mind that a clean design is just as impressive. Don’t stick sharing widgets everywhere on your homepage (save them for the end of your blog posts, where they’ll have the most impact). Pare down and remove any unnecessary widgets or plugins.
You can also speed up load times using the WordPress options to show excerpts instead of full posts, and limit the number of posts per page—5 to 7 is a good number.