10 minutes may seem a lot for the Instant Pot but remember that you want them very soggy so that they make good mash. By them being this soggy they are easier for lump free mash and it doesn’t feel like you are making much of an effort.
You can swap the olive oil for coconut oil, butter, margarine or avocado oil. I season with salt and pepper twice. This is because they can lose the flavour when the Instant Pot Mashed Sweet Potato goes to pressure.