How to fix image memory (NO images, 19 mb used)

I'm doing a little bit of testing on mobile, and I encountered something very odd. Using zero images or objects, my project took up 19 mb on mobile, as shown in the pictures below:

No images used...

Yet 19 mb of image memory used

What is going on, and how can I fix it?

Thank you for any advice you may have

With 23 fps, and no objects, the best advise would be to get a better phone.

Heh, I've got a Droid Turbo. If this isn't able to handle Construct 2, not many things will

Then don't worry about it.

Presumably the canvas has to be rendered and uses some image memory.

what if you add a layer below it and delete the canvas ?

How large is your canvas

How many layers, and do you use "force own texture"? But really, seeing the capx instead of screenshots would yield a faster diagnosis.