How do you reduce lag on your Final Cut Pro x 10?

To reduce lag in Final Cut Pro X, start by optimizing your project settings by using proxy media instead of full-resolution files, which decreases the load on your system. Additionally, make sure to close any unnecessary applications running in the background to free up resources. Regularly clear your render files and cache to keep the project running smoothly. Finally, consider upgrading your hardware, such as adding more RAM or using a faster SSD for your media files.