Why is there a noticeable delay when using third-party APPs for video calls while running many APPs in the background of the Redmi Note 14S?

Thank you for your continued support. The Redmi Note 14S has undergone strict professional inspection before leaving the factory, so you can feel confident in the performance and reliability of your device, knowing that it has been thoroughly tested for quality and functionality.
We recommend avoiding the continuous use of video calls. If you experience any lag or stuttering during video calls, it’s a good idea to first clean up any unnecessary apps running in the background. Closing these apps can help free up system resources and improve the performance of your device. Additionally, if the lag persists, we suggest allowing the phone to rest for a while before resuming use.