Many WordPress users often wonder whether inactive plugins slow down their websites or have any negative effects on their websites.
What we can understand from their wonder is that they need those plugins but not for the moment, that’s why they don’t remove them. Instead, they prefer to keep them inactive.
In short, inactive plugins don’t slow down the website.
To understand that, you need to know how WordPress works behind the scenes.
When you visit your website or anybody visits your website, WordPress starts a loading process. During this process, it only loads the files of the active plugins. All inactive plugins are completely ignored and are not loaded.
Even if you have a lot of inactive plugins installed on your website, they would not slow down your website.
Therefore, keep in mind, if your website is loading very slowly then the inactive plugins are not the reason.