@Moemen2000: The options available to you can vary depending on which phone you have. Typically, you can keep your device running smoothly by heading to Settings > Battery and device care > Optimise now. There are options such as RAM plus is Battery and device care > Memory that can allocate your phone's storage space to provide virtual memory. By managing your device, you'll ensure that there's enough processing power available to keep it feeling snappy and responsive, and running to its full potential (within the limits of its specifications, of course).
