I have my S8 note for 7 months now it just starts hanging on online games also on minecraft so when moving it lies but why
Get an iPhone
How much RAM does the cell phone have?
Try deleting some of the data to free up RAM and have often downloaded things from the Internet because you may have a virus e.t.c.
If your battery runs out faster, you probably have my Bitcoin mine on your phone or a Trojan or whatever
If I set my cell phone to factory settings 2 days ago, would the virus be gone?
Have reset to factory settings 2 days ago then it would not be gone?
Well, it doesn't have to be