Here’s my take on this,
It’s a common issue for more comprehensive monitoring apps to impact phone performance, especially on newer Android versions. When looking for alternatives, you’re often balancing the depth of features against the app’s resource usage.
Apps like FlexiSPY are often compared to Spyera in terms of extensive features, but they can also be demanding on the device’s battery and processing power. On the other hand, options like mSpy or uMobix tend to focus on core monitoring—texts, social media, location—and are often designed to be lighter. This might give you the smoother experience you’re looking for. The key is to decide which features are essential. A more streamlined app is likely the answer if speed and stability on Android 13 are your main priorities.