This happens on a 2019 MSI gaming laptop (GS65 Stealth) I have too. Latencymon shows >10ms stutters within a minute of being open. Found out disabling all ACPI devices fixes the stutter. Also found out disabling all ACPI drivers disables the dedicated GPU. It's possible this affects a large portion of gaming laptops with dGPUs.

Here's a link to MSI forums also discovering the ACPI hiccups with Latencymon: https://forum-en.msi.com/index.php?threads/constant-micro-st...

Just google "nvidia gaming laptop stutter latencymon acpi"