At Control Panel > Performance > Performance Options, you enable Memory Compression to improve system responsiveness under high-loading environment.
You can enable Memory Compression to improve general system responsiveness under load by compressing the least recently used data in memory.
When you have multiple applications running and the memory begins to fill up, the dynamic Memory Compression shrinks the size of seldom-used items in memory, minimizing memory usage. When the items are needed again, they can be instantly uncompressed. This reduces the need to read and write memory swap files on disk, improving efficiency and responsiveness.
To enable Memory Compression, simply tick the checkbox.