it is regular or a problem that the project frames go down between 50 and 55 or later go up to 60?

Hi, I'm new to this and have been testing the demo version

I would like to know if

it is regular or a problem that the project frames go down between 50 and 55 or later go up to 60?

Depending on how many objects are in the layout, a little bit of dropping frame rate is normal. When objects are added the FPS may drop and when they are destroyed the FPS might increase.

thank you, it's clear to me