Convert couple of hundreds RAW to JPG?

Hey,

I'd like to convert a couple hundreds of RAW images to JPG. I've created a shortcut for it. From my testing, there seems to be a limit to how many photos the iPhone can handle before the shortcut crashes.

Is that supposed to happen? I got a fairly recent iPhone model. I've edited the shortcut to only convert 20 photos at a time, but that will take my manual action every couple of seconds.