As many of you will no doubt know, this is hardly ideal. However, when production began this was all that was available to us.
I know exactly how you feel. I've been trying to finish a Star Wars fan film for years that was shot on miniDV. It wasn't so much the format it was shot on, but the camera angles the director and DP used. Some of it was restricted due to extensive green screen use (ie. you can't use a low angle and shoot up because the green screen wasn't high enough. nor could you shoot down on a subject because what was used for the floor was a green sheet that was badly lit and wrinkled making compositing excrutiating).
However the location stuff was often shot in the same unexciting fashion. And a lot of fan films fall into the same trap. There's so much to think about for so few people, that cinematography often gets left off as long as what is captured is in focus.
I found colour correcting can make things a bit more dramatic, and is relatively simple. I changed a bunch of scenes to a red tint to simulate emergency lighting which worked quite nicely.