This is not normal. And I don't recommend accepting this behavior. To expedite service, I suggest two steps: Run the built-in hardware test, extended version.

This is not normal. And I don't recommend accepting this behavior. To expedite service, I suggest two steps: Run the built-in hardware test, extended version. If it finds any fault, take it straight in for service. https://support.apple.com/en-us/HT201257 https://support.apple.com/en-us/HT201257 If AHT shows no errors, clean install macOS. As in, wipe it totally, and reinstall. This is tedious but I expect Apple support will recommend it anyway. And if you've already done it, it might save time.