5 ways to fix NOX emulator lag issues that really work

Ivan Jenic
by Ivan Jenic
Troubleshooting Expert
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fix nox emulator lagging

Do you have NOX installed on your PC? Are you experiencing any form of lag while running it? This article is specially designed for you! Here, we’ll be showing you some of the most effective troubleshooting fixes, to resolve the lag and speed up your NoxPlayer.

NOX is an Android emulator for PC, which is basically designed to afford PC users the opportunity to enjoy Android gaming experience on their computers. The emulator is suitably built to work perfectly well (in sync) with most Windows PCs.

However, depending on your system’s (PC) configuration, settings and specs, you might experience some lags while running NOX. Essentially, the emulator‘s performance is wholly dependent on your system’s performance.

Hence, if you are experiencing any form of lag while running NoxPlayer on your PC, follow this article with rapt attention, as we bring you five of the most reliable troubleshooting solutions, to resolve and fix NOX emulator lag.

How do I fix NOX emulator lag on PC?

The following troubleshooting fixes constitute some of the most effective methods, to fix NOX emulator lag on PCs.

  1. Enable Virtual Technology (VT) on your System

fix nox emulator lagVirtual Technology (VT) comes inbuilt with most standard computers. However, most times, the VT function is usually disabled, in which case, you are bound to experience some lags while running the NOX emulator.

To resolve this issue, all you need to do is to enable the VT setting on your system, and you’ll experience a significant boost in the running speed of NOX.

To enable VT on your PC, follow the guidelines below:

  • Download LeoMoon CPU-V and run it to check if your PC hosts VT.
  • Also, the app would show you if VT is enabled or not. If it is, then something else is causing the lag; otherwise. proceed with the next steps. VT is usually embedded in a PC‘s BIOS.
  • Click the “Windows + R” keys to open “Run” dialog box.
  • In the “Run” box, input “Dxdiag”.fix nox emulator lag
  • Select “OK”. This will bring up your PC‘s BIOS details.fix nox emulator lag
  • After bringing up your BIOS details, you can then run BIOS to activate the VT embedded in it.

The procedure for running BIOS varies across platforms. Hence, depending on your system’s build, the procedure outlined herein might not work for you.

Follow the steps below to run BIOS on your system:

  • Power off your PC and reboot it.
  • On the boot menu, run BIOS by clicking the “F2” button (or any of the F-keys, depending on your system).
  • Go to “Configuration” and locate one of the following:
    • Virtualization
    • Intel Virtual Technology or
    • VT-x.
  • Enable the virtual engine.
  • Hit the F10 button to save changes.
  • Exit
  • For Win8 and Win10 users, make sure you disable the “Hyper-V” feature on your PC, before enabling the VT function.

Enabling VT on your PC should fix NOX emulator lag issues, and you can now enjoy optimized Android experience on your PC, via NoxPlayer.

If this doesn’t work, you can try the next troubleshooting fix.

  1. Reconfigure the RAM and CPU Allocated to NOX

This procedure works in sync with the virtual technology function; hence, if your system does not support VT, you can’t fix NOX emulator lag using this procedure.

To customize the CPU and RAM allocated to NoxPlayer, follow the step-by-step guide below:

  • Launch NOX and navigate to the top right-hand corner of the home page.
  • Click on the “Settings” option.
  • Under “Settings”, select “Advanced”.nox emulator settings
  • Check the “Customize” box.
  • Configure the performance settings as you desire (setting CPU and RAM to higher values is the recommended configuration).
  • Enter desired value in the designated box for CPU.
  • Do the same for RAM.
  • Click on “Save Changes”

NoxPlayer should be working at optimum capacity now.

If you are still experiencing lags, you can change the graphics rendering mode (under Advanced settings).

Note: In trying to improve NOX performance via CPU and RAM customization, ensure to leave sufficient CPU and RAM space for the computer to run other system operations. Failure to do this might result in eventual system crash.

Still experiencing lags? Try the next fix.

  1. Enhance Graphics Card Performance

Like most emulators, NoxPlayer requires a standard graphics setup to function properly. So, if you are experiencing lags, the problem could be from your system graphics cards (or GPU setup).

The ultimate solution in this case, is to increase the performance of your system’s GPU, specifically the graphics cards. Although, there is a number of ways to do this, we’ll be showing you the standard ones in this section.

Follow the short guidelines below to set graphics card to higher performance:


  • On your PC‘s desktop window, right-click.
  • On the displayed options, select “NVIDIA Control Panel”.
  • Click on the “Manage 3D settings” option.Manage 3D setting nvidia
  • Navigate to the “Global Settings” tab.
  • Under the “Preferred graphics processor” drop-down, select “High performance NVIDIA processor”.

This would jack-up the graphics card performance

However, if you want to set the graphics card to higher performance on only NoxPlayer, you can customize the setting as follows:

  • Under “Manage 3D settings” (as described above), go to the “Program Settings” tab.
  • On the “Select a program to customize” drop-down, select NoxPlayer.
  • Under the second drop-down menu, select “High performance NVIDIA processor”.High performance NVIDIA processor settings
  • Press “Apply” to save changes.
  • And you are all set!

For AMD:

Note: This process requires two sets of graphics cards. Hence, you need to check if you have two graphics cards on your system.

  • Click on the “Windows + R” keys (to open the “Run” dialog box).
  • Type “devmgmt.msc” in the box (to launch “Device Manager”).fix nox emulator lag
  • Click on “Display adapters” to display the graphics card(s).fix nox emulator lag
  • If there are two graphics cards, proceed; otherwise, abort.
  • Navigate to your desktop window and click “Start” > “Programs”.
  • Select “Catalyst Control Center”.
  • Under “Catalyst Control Center”, locate “Power” and click on it.
  • Select “Switchable Graphics Application Settings”.
  • Locate Nox App Player and set its graphics to “High Performance“.
  • Click the “Apply” button.
  • And you are all set!

Alternatively, you can update your graphics card drivers by using driver updater software.

  1. Fix Nox Emulator Lag By Clearing Cache

More often than not, NoxPlayer would be running slow after heavy usage. And most times, all you need to do to fix the error is to CLEAR the emulator‘s cache (like in Android phone).

To clear NoxPlayer’s cache, follow the guidelines below:

  • Go to “Settings” and click on it.
  • Select “Apps”.
  • Locate the “ALL” tab and select “Media Storage”.
  • Click on the “Clear data” icon
  • Select “OK” in the confirmation pop-up.
  • Once cache is cleaned, NoxPlayer should now be working fine, without lag.
  1. Reinstall NOX

If, after trying all possible fixes, you are still unable to fix NOX emulator lag, the ultimate solution would be to reinstall the program. By reinstalling the Android emulator, you get a fresh (bug-free) app, which should now work perfectly, provided all system requirements have been met.

You can download the latest version of NoxPlayer here (Windows only).


NOX is one of the most prominent Android emulators in the market. And it is designed to run at optimum capacity, in sync, with a host PC. Hence, in the event of performance reduction or lag, the primary problem is usually caused by the host computer.

In any case, we have outlined five standard troubleshooting procedures, which, if appropriately applied, would fix NOX emulator lag, and speed up the program’s performance on your PC.

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