To run version 10.4.5 efficiently, your Mac should meet or exceed these specifications: macOS High Sierra 10.13.2 or later.
The 10.4.5 update focuses primarily on reliability and performance efficiency: final cut pro x 1045 macdmg top
Users can manage their installation directly through official Apple channels: How to update to Final Cut Pro version 10.4.5 | Mac | FCPX To run version 10