Remove the Slow Plugins
Poorly coded plugins certainly course the slow down of your WordPress blog. If you are not a tech-savvy blogger, you can not even say anything of a bad plugin that is capable of slowing down a website.
Install plugins that are supported and maintained, you will surely get the best WordPress plugins needed by every blog owner.
Updating your plugins is very crucial, this help to keep your blog very fast when you update it regularly.
Get rid of all the plugins that are not effective again, the outdated ones in your blog. You can discover if a plugin is outdated, by going to the plugin's page and view if a message is giving a warning, then you must uninstall it and look for a better alternative. Any well-coded plugin is good and must be updated always to keep the fire burning for greater efficiency.
Make use of a Lightweight Theme
You must try to use a Wordpress theme that is not heavy because it will affect the loading speed of your blog. Never go for a feature-packed theme, any special features you need can be downloaded using the right plugins.
Use the Latest Version of Wordpress
You must update your WordPress to the latest to prevent your blog from sluggish behavior, anytime there is an update message, click it and get it updated for optimum performance of your website.