Sometimes that kind of problem is depend on your phone, if you're using a budget meal phone like A04 don't expect that phone can handle heavy usage but I recommend whatever phone you're using, try to minize your phone and put to deep sleep those default apps and uninstall those app that's not necessary ^-^
Thank you for letting us know here, about your Samsung Galaxy device have lagging issues
We really get where you're frustration coming from because you had a bad experience using your device even though you expected it to work perfectly. But, don't worry, we are here to help, provide quick fixes, and offer solutions to your device problems.
Both, we will figure out what's behind the issue/s and other possible reasons and come up with the solutions by following below steps.
A) First, ensure that your device is up-to-date with the latest Software updates.
Settings > About Phone > Software Updates > Download and Install > Follow On-screen instructions.
B) Check the network connection.
Check to see if your internet connection signal is strong. If your network coverage is poor, you might experience the mobile connectivity not working properly. Please reconnect to the Wi-Fi and/or Router with strong network coverage to fix this.
And/or contact your Mobile Network Service provider in order to find out the signal in your coverage area.
C) Turn off and on Wi-Fi.
If you've turned on your phone Wi-Fi for a while, it might go into battery-saving mode. In this case, restarting your phone connection might be helpful. To turn it off and back on, simply swipe down the quick-setting panel and tap the, "Wi-Fi" & "Location" shortcut.
D)Turn on and turn off Airplane mode.
All active connections are simply cut off when airplane mode is turned on, and they are restored when airplane mode is turned off. To disable airplane mode, please pull down the quick-setting panel and tap "Airplane mode," wait a few seconds, and then tap it again.
E) Clear the Cache.
Step 1. Turn off your phone. Step 2. Plug in the USB cable via PC or Type-C earphones (in case its USB-C to USB-C). Step 3. Then press and hold Power and Volume up buttons. Step 4. Release the power button. When the recovery screen shows up, release the volume up button. Step 5. Navigate to and select Wipe cache partition (Volume up and down is for highlighting options and power is to select). Step 6. Navigate to and select Yes. 7. Press the power button to select Reboot system now.
F) Remove unnecessary apps to have additional storage space and close all apps running in the background.
G) Report an error through Samsung Members app.
Step 1. Long press Samsung Members icon on Apps screen and Tap Error reports.
Step 2.Tap OK on agreement popup for sending system log data.
