Newer versions often add features (Android 9/11, Vulkan support, more background services) that slow down older hardware. An old version (e.g., v4.x or early v5.x) might run smoother on a Core 2 Duo or old laptop.
I feel your pain. The newer MSI App Players are resource hogs.
The is a dedicated Android emulator developed in partnership with BlueStacks to run mobile games on PCs. While newer versions (like version 5 and above) offer modern features like Cloud Gaming and Android 9/11 support, users often seek old versions (such as version 4) for their "Lite" performance profile on low-end hardware . Core Features of MSI App Player
If you answered "yes" to all four, you are ready to safely downgrade.