How To Fix Slow SAMSUNG GALAXY A15 To Run Faster and More Responsive (Fix Lagging Performance)?

The SAMSUNG GALAXY A15 is a 4G or 5G smartphone that operates on Android 14, featuring a Super AMOLED 6.5 inches screen size. Despite its impressive specs, some users may encounter lagging problems after several months of use. We will provide some tips and tricks to make the SAMSUNG GALAXY A15 run faster.

Why SAMSUNG GALAXY A15 Performance Becomes Slow and Not Responsive?

This phone is powered by a Mediatek Dimensity 6100+ processor for 5G version and Mediatek Helio G99 for 4G version with options for 4, 6, or 8 GB RAM. Any apps will consume RAM to run in the background or foreground. If we install too many apps together, then our SAMSUNG GALAXY A15 RAM may not be sufficient.

SAMSUNG GALAXY A15 mediatek processor

Please ensure our RAM is not insufficient. If this phone does not have enough free RAM, some applications may force close to provide more free RAM. This process can make the SAMSUNG GALAXY A15 lag for a while.

Typically, slow performance occurs due to an excessive number of applications running in the background, including chatting apps, social media, games, and others. These apps remain active in the background, awaiting data updates and commands. When some applications run simultaneously in the background, the SAMSUNG GALAXY A15’s RAM and processor resources may become insufficient.

How to Boost Speed Performance of SAMSUNG GALAXY A15 And Make It Run More Faster?

  1. The first step we should do is perform a soft reset or reboot to remove temporary files and caches. Usually, after our phone finishes rebooting, the speed performance might become faster.
  2. Please uninstall all unused applications. We can find them in the menu Setting > Apps, and choose not active applications, then select Uninstall.
  3. Some factory default applications do not have an Uninstall button option, but we can disable them by choosing the Disable button at menu Setting > Apps > Disable on our phone. These steps can also reduce the usage of RAM and processor resources.
  4. If all solutions still do not improve the performance, then please consider doing a hard reset to factory default. Follow the steps on the SAMSUNG GALAXY A15 Hard Reset / Reformat page using hardware button combination Key.

Solutions For Slow Gaming Performance On SAMSUNG GALAXY A15

The SAMSUNG GALAXY A15 is use a Mediatek Dimensity 6100+ processor and a Mali-G57 MC2 GPU or 5G version and Mediatek Helio G99 processor with the same GPU. However, we must have enough RAM before playing games.

If we run many applications in the background, some games will run slowly or lag. It is very important to make sure our SAMSUNG GALAXY A15 has enough storage and enough free RAM capacity.

how to fix slowly problems on SAMSUNG GALAXY A15

Why Is SAMSUNG GALAXY A15 Speed Become Lagging After Upgrade?

This phone was released with Android 14 operating system. There are some Android firmware upgrades released to improve performance and features. However, some users experience slow speed troubles or lagging after an upgrade. What should we do?

In most situations, performing the upgrade process will not make our SAMSUNG GALAXY A15 become slow. But if this problem happens, maybe there are some applications corrupt or cannot run properly with the new version of the operating system.

Therefore, we suggest backing up all important data and doing a hard reset or reformat with the new operating system. Please note, doing a hard reset will not downgrade the operating system.


The SAMSUNG GALAXY A15 has a large screen of 6.5 inches that is fun for supporting gaming and working. It is powered by an Octa-Core processor Mediatek Dimensity 6100+ or Mediatek Helio G99 that uses 6 nm technology. We have to make sure our 4, 6, or 8 GB RAM is enough for any apps that we need to use every day.

Please note, some menu options will be different because of firmware update versions or other possibilities. Please use the comment box below for other questions to discuss.

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