i am making an hack an slash 2d game .
in just a one scene , when i instantiate an enemy and play it , has a very bad lagging.
this scene whith out enemy has no problem .
and other level’s and scenes , are working good . (even whith enemies)
Without access to the project is hard to help because can be a lot of things. The tip i can give you is look the process and physics process times to have a idea from where the lag is coming.