Ultimately, if you own a Redmi Note 13, activating Developer Options is the first step toward moving from a user of the phone to its master . Just remember: with great power comes great responsibility—and the occasional factory reset.

The Redmi Note 13 variants come with varying RAM (6GB to 12GB). To preserve battery, Xiaomi is aggressive with killing background apps. In Developer Options, setting "Background process limit" to "At most 3 processes" can save juice, while setting it to "Standard limit" ensures apps like WhatsApp or Spotify stay alive in the background.

Xiaomi includes a specific toggle labeled "MIUI Optimizations" (or similar HyperOS variants). When disabled, this changes how the system handles background processes and notifications. Warning: Disabling this can cause widgets to glitch or notifications to delay, but enabling it strictly ensures battery savings—a key feature for the Note 13’s large 5000mAh battery.