A few general thoughts on a general problem.
We have video cameras at a remote location along with a CCTV analog DVR at a work location. What we want to do is put a regular monitor in a remote location which can display what is happening without using a computer. The DVR allows for a web browser to hit it over the internet to display what is going on.
I haven't done it, but I'm sure it should be possible.
To be picky, an RPi is
a computer - but it's a very small one so perhaps that's OK?
No matter what the browser solution, does the network connection at the remote location allow incoming connections from devices on the public internet? Have you tried using a standard PC or Mac to run the browser, because if this can't be made to work you are out of luck anyway...
If the networking aspect is OK I'd suggest you try it and see - compared with the cost of the next possible alternative the cost of an RPi to experiment with is surely negligible for a business? Unless you know otherwise, start with Raspbian as the Operating System - it is the one backed by the Raspberry Pi foundation and the one with most community support available. It comes with at least 3 browsers built in, and the ability to easily add others. It does not support Flash
- might be worth checking that the DVR webpage doesn't expect to render using Flash.
Performance is relative to the expectation of the user - that's a major reason for trying it yourself - only you can decide whether it is acceptable.
Finally, there a number of pre-packaged 'Digital Signage' solutions already available for the RPi. I don't know if any of these can pull in resources from remote locations for display, but if so that might be something worth looking at.
How To Ask Questions The Smart Way: http://www.catb.org/~esr/faqs/smart-questions.html
How to Report Bugs Effectively: http://www.chiark.greenend.org.uk/~sgtatham/bugs.html