PC Optimize
Q.What can I do to improve my PC's performance?
Common causes of performance issues that may cause sound skipping, stuttering, distortion and other problems include:
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Common causes of performance issues that may cause sound skipping, stuttering, distortion and other problems include:
- Computer that is not powerful enough or does not have sufficient memory (RAM) - The recommended requirements can be found on the following page (Ideally your computer should exceed these): Minimum system requirements
- If you computer doesn't meet these requirements, stems can be set to not be calculated in real time, or even disabled completely with the stemsRealtimeSeparation option
NOTE: Even if your computer is above the recommended requirements, it may not perform well until it has been optimised for demanding low latency audio applications such as VirtualDJ. This is because many laptops and computers are only designed and tested by the manufacturer with home and/or office users in mind, so they are not configured properly for demanding audio applications such as VirtualDJ. This guide will help you optimise your computer for VirtualDJ. - Overheating - Make sure that your computer has adequate ventilation and the cooling fans are still operational and are not being blocked. Most computers will slow down the CPU when it starts to overheat, reducing performance considerably. Overheating can also cause your computer to crash or freeze. For a laptop, a DJ laptop stand is a recommended to allow all round ventilation.
- Wireless networking. Some wireless network drivers are poorly designed and will cause latency issues. Try turning this off or disabling wireless. Also, check to see whether updated drivers are available from your computer manufacturer's website.
NOTE: If you need wireless access, but you are unable to resolve the issues caused by your computer's built-in wireless networking, then you could purchase and use an external wireless adapter instead. Because your computer connects to this via normal Ethernet cable, this will allow you to leave the built-in wireless disabled, avoiding the problems that it causes. - If you are using a MIDI controller that has a built-in sound card or you are using an external DJ sound card (E.g: Numark DJIO), then Windows may also be trying to use it as its default playback device, which in some cases may cause a conflict. Make sure that Windows is set to use your computer's own built-in sound card as its default device (Start -> Control Panel -> Sound -> Manage audio devices)
- Out-of-date drivers, BIOS or firmware. Please visit the website of your computer's manufacturer and ensure that you have the latest installed. Also, make sure that you have the latest drivers for any DJ hardware (External sound cards, MIDI controllers, etc.) that you are using. Download links for hardware commonly used with VirtualDJ can be found on the VirtualDJ supported hardware page
- Out-of-date versions of the software. Please ensure that you have the latest version installed from the download page
- Viruses and spyware present on your system - Please ensure that your anti-virus software is fully up-to-date and perform a full scan of your system. If viruses are found, then after removing them reboot your computer and perform another full scan. Repeat until no further viruses are found.
- Unnecessary software running in the background. Manufacturers often install unnecessary 'bloatware' applications on computers that can cause performance issues.
NOTE: To appear to give greater value for money, new computers are also often loaded with lots of unnecessary software (Bloatware) that the user will probably never use, which can also cause performance issues. A clean, fresh install of Windows from the original Microsoft installation CD's is recommended if you have this option available. Make sure that you backup any important files first. - A processor (CPU) or memory (RAM) intensive scheduled task such as a full virus scan of your system is starting and then using too many system resources. In particular, virus scans can often be configured by default to start in the early hours of the morning when you may still be DJ'ing. Missed scans will often re-schedule for 10-15 minutes after you next start your computer.
- Laptop optimised for battery life or power saving rather than performance - Go to the Windows Control Panel -> Power Settings and make sure that your computer is set for maximum performance. IMPORTANT: Make sure that your computer has adequate ventilation (For a laptop, a DJ laptop stand is a recommended to allow all round ventilation.)
- On Windows 11, go to Settings -> System -> Power & Battery, and ensure that Power Mode is set to Balanced or Best Performance for both 'On Battery' and 'Plugged in'
- If you get slow or choppy video performance then this may be because your computer has dual video cards - One for high performance and the other lower performance to conserve battery life. Your computer is probably using the lower performance card for VirtualDJ, resulting in poor video performance.
You can choose which video output VirtualDJ uses from the VirtualDJ options under 'skinUseLowPowerGPU' - Due to faulty drivers, some video cards can cause video problems on some new computers. This is normally caused by the drivers incorrectly reporting more memory than what is actually physically available in the card. If you are experiencing problems with your computer running out of memory or freezing when playing video, try installing the latest version of the drivers for your video card. These can normally be obtained from the support/driver download area of your computer manufacturer's website.
NOTE: In some cases, the manufacturer may not have released an update yet that fixes the problem. If this is the case, try installing an OLDER version of the driver, if available (I.e: A version of the driver before this bug was introduced.) - CPU Core Parking - Modern CPUs can benefit from 3rd party tools instead of allowing the operating system to handle this task. ParkControl can help handle this task more efficiently in order to reduce latency.