The best way to uninstall programs that are causing slowdowns is to use the built-in features of your operating system. On Windows, go to the Control Panel and use the Programs & Features option to uninstall any programs you don’t need. On Mac, go to the Applications folder in Finder and drag any applications you don’t need to the Trash. You can also use third-party software such as CCleaner to help you find and remove unnecessary programs. Additionally, some programs may have their own uninstaller that you can use to uninstall them.