If you experience low frame rates, try using Rendering Presets , disabling HDR rendering, or lowering water reflections in the settings menu.
Tools like Traffic Global add realistic AI traffic, while the Zibo 737 is a highly recommended freeware aircraft that significantly improves upon the default 737. Helpful Resources x-plane-11
Download your chosen add-on, unzip it, and move the folder into the X-Plane 11 > Aircraft directory. If you experience low frame rates, try using