: Adjust the Swappiness value to control how aggressively the system uses the virtual memory versus physical RAM.

Roehsoft RAM Expander creates this swap file directly on your external microSD card. This process frees up high-speed physical RAM for your active, foreground applications. While storage memory is slower than physical RAM, a swap file prevents Android from aggressively closing your background applications. Key Features of Roehsoft RAM Expander 210

💡 : Creating a swap file on an SD card that is too slow can make your phone feel even slower than before, as it waits for data to be written to and read from the card.