To migrate your system and files saved on the original to the new hard drive without data loss you can use the free program named MiniTool Partition Wizard. If you find your PS4 still is running slow after freeing up its hard drive or there is some mechanical damage to the hard drive, you may want to replace the hard drive with a new larger hard drive to save more games. Step 4: After deleting, check whether your PS4 is running slow. Step 3: Press the Options button and select the Delete option. Step 2: Select the content you would like to delete. Step 1: From the PS4 main screen navigate to Settings > System Storage Management and then select any of the categories below to view more information: How to free up the hard drive installed in your PlayStation? Here is the tutorial.
Therefore, the first action you can take is to free up this hard drive, which may help improve the speed of your system. To put it more clearly, low space on the console creates a smaller room for the system to operate. It was mentioned that one of the reasons for PS4 running slow is that the hard drive installed in the PlayStation is quickly full. Read More Action 2: Free up Your Hard Drive Space or Replace It with a New One