Scapple memory usage

Just bought Scapple and somewhat dismayed to see it’s using 664.5MB of real memory and 819.4MB of virtual memory on my MBP. Rather a lot for a little note-taking application. Is this a memory leak?

Can’t comment on memory leaks, I’m just a user. But for comparison, I have Scapple running with 2 windows open. The first has approx 50 notes and the second is a test document with 3 PDFs and a jpeg. Currently using 46.1MB of real memory and 39.3 of virtual on an old MBP.

Do you have lots of images in your Scapple document? If so, that would explain why the memory usage is higher.