It remained slow and buggy for a while, until I needed to wipe some files for security. I noticed it became much faster after wiping the free space!
What is wiping free space?
What tools to use?
Andro shredder is one of them, it deletes files permanently and wipes free space too.
Sceure Wipe is another popular tool.
Wiping free space doesn’t cause data loss and it securely deletes data.
Did this fix work for you? Did you test it on other models? Please let me know what you think in the comments section below.