To manage the RAM of your device, please check out the given steps and enhance your experience.
Kindly note that it depends on the applications on your device. Also, some storage is used by the system applications.
1. Check the phone memory, if it is too full, delete some files/images that are not in use and uninstall the app that is too large or useless.
2. Don’t download many files or open many Apps at the same time.
3. Clear background Apps, clear caches regularly, and limit the APP self-starting in the phone manager.
Long-press the app > App info > Storage usage > Clear data/cache
4. Set the device back to factory mode in the setting, but this way will delete your own data/Images/Apps, please backup them first.
ColorOS 6.0: Settings > Additional Settings > Backup and Reset > Reset to factory settings > Erase all data, enter the password and click "Clear Data".
5. Optimize your device.
realme UI 2.0: Settings > Battery > More battery settings > Optimized battery use
realme UI 3.0: Settings > Battery > Advanced settings > Optimized battery use
realme R & Go Edition: Settings > Battery > App standby optimizer
realme UI 1.0 & ColorOS 6.0: not support
In case you are still facing any issues then kindly do let us know over our official communication channels.