Originally Posted by sdrawkcab25
Its flash memory, there is no fragmentation. But doing a factory reset will help clean up unused files. It is also worth it to stick the SD card into a PC and format it to FAT32 (don't use a quick format option).
You never want to format the phones internal memory(quick way to a brick).
Well isn't just the same as the old SSD drives when if it didn't have trim it would get slow? If not, I really wonder why it has slowed down so much. Even receiving a text takes ages. I have a task manager that shows CPU usage and the device looks idle, so not some terrible processes taking up a bunch of resources, it's just dog slow.