Is there any way to prevent Craft from doing anything with uploaded GIF assets? I'm having an issue where Craft seems to change (significantly slowing down) the framerate of animated GIF assets on upload (this doesn't seem to be an image transform problem: if I add the file as an asset in Craft, and then open the uploaded version of the file, the framerate has already changed).

The server is on the latest version of php-imagick (3.1.2) and ImageMagick (6.6.7-10) that are currently available for the version of Ubuntu that we're running (14.04 LTS)

So my question is: is there any way (config setting or similar) of preventing Craft from messing with uploaded GIFs in this way?
When you upload an image to Craft, the image is automatically “cleansed” using the same basic process that Craft uses to create image transforms. That happens to ensure that there are no malicious scripts hidden in the images, and it’s not something you can disable.