System keep ram memory

Jan 14, 2019
To Dev.
I need a system MIUI Redmi 5A or any devices to Maintain good keep RAM memory operate the applications that are in 3-4 applications or 600-700MB as pubg game To be the same as the system of other rom. such as pure android, google pixel os, zenui, Lineage os, etc. It very well keeping RAM. Please do it