Optimize VLC for Video Playback
Although Windows Media Player has improved over the years, the best solution for media playback on Windows is still VLC in our opinion. The support for almost all audio and video formats is a great benefit, but it is also simple and straightforward to use.
But if you are using VLC on a slower computer, maybe a Windows XP based system for example, you might face some performance problems with video playback. Especially large resolution videos requiring lots of processing can cause delays or rendering problems.
It is however possible to tweak the VLC player a bit to ensure it will get all possible CPU resources when playing a video file. The general problem with multitasking operation system (like Windows), is that the CPU is shared amongst tasks, so a single process will never get all the CPU time.
VLC has a setting that allows the user to increase the priority and as a result get more CPU time. This can help in playing the movie that just won’t play properly on your computer!
To change the VLC setting for increased performance, open the player, and in the Tools menu, select Preferences (or press Ctrl+P). This will bring up the Simple Preferences window.
In the bottom left of the window, you need to select the All option for the Show settings feature.
This will change the thumbnail view on the left to a list view with more options.
In the list, you need to select the Advanced option, and check the option named Increase the priority of the process.
Although you can experiment with the Clock source option, generally the Auto setting will already do the trick.
Click Save to store the settings and then play your media file again!.
Note: Be prepared that the responsiveness of Windows and other applications will be a lot slower (although you should not run those in the first place when dealing with performance issues).