What do you mean by lag? What is a specific example?

• Make sure your laptop is not in power saving mode

According to your question, there is no problem with the hardware, it may only appear in the software configuration.

• First try to check your task manager to see if the CPU and GPU usage changes when using the emulator.
• If the GPU usage does not change, it means that your emulator is not using the GPU for rendering.
• Please check the Android Studio emulator configuration options to enable the emulator to use GPU rendering.

• In addition, you can try to run the emulator alone without Android Studio to test whether there is any lag.

The specific method is to enter the directory where the emulator is located and start it through the emulator binary file

# macOS,
cd ~/Library/Android/sdk/emulator   # redirect to emulator dir
./emulator -list-avds               # show all available avds
./emulator -avd Pixel_8_Pro_API_35  # boost your avd

# check CPU usage and lag condition
# if GPU not used, try explicitly specifying the GPU in the command
# Control + C to force quit and then boost again using the following command

./emulator -avd Pixel_8_Pro_API_35 -gpu host

For more configuration, see the official documentation

https://developer.android.com/studio/run/emulator-commandline