It might be possible to create really simple looking blobs as the "low detail" version of the weapons. However, I don't actually know how the detail settings are implemented, nor do I want to speak for our effects people, whom I <3 ever so much. I do wonder how much extra mod space would be required, depending on how generic these things were; it might be releasable as a separate effect pack, or summat.
For the mean time, it's a dev conspiracy to upgrade your computers.