>>95805250She runs on caloric intake, as was clearly demonstrated last issue.
Also encouragement, but that is a given.
The more she shifts, the more juice she needs.
And looking like someone doesn’t help punching. On the contrary, it binds resources.
And she is not the type to regularly impersonate people for gain, so she has little reason to go there, usually.
But I guess with an IV bag of grease she could manage more elaborate feats for longer.
Another factor is training. She is still learning and getting to know herself, slowly. So she ramps up over time as she fights more often. She started with selectively enlarging body parts, then went large/small. Now she added rubber dodges to her move set. Also she could always be only one hissyfit away from using a demon mask to intimidate someone.
In Secret Wars we saw an adult Kamala who went full infiltrator and used impersonation and chameleon camo masterfully.
So it seems certain she would end up getting there in a few years.