To use only 2 cores of the CPU of the computer, do the following action after opening a terminal window in Linux, where Device10.avd is the Android 10 AVD created:
$ vi ~/.android/avd/Device10.avd/config.ini <enter>
Change the values in red for the below parameters in the file to those in blue as below.
hw.cpu.ncore=4
hw.cpu.ncore=2
Save the file and restart Android Studio. This should reduce the risk of the system crashing.