i don't think that the laggy footage has anything to do with the indoor ligting...
do you have a correct class4 or higher memorycard?
can your computer handle the HD footage?
if it does happen to be laggy, but just a very little and your frames are a bit unsharp, it could also be that you need more light...
and about the weird coloring, that's the whitebalance, and might be adjusted in the next firmware update...
have you tried setting it to spot metering instead of average metering, and aiming it at the indoor lightsource?
if the colors then turn out correct, it's just the whitebalance.
if its still weird we have learned nothing, and it could still be whitebalancing problem since the pictures turn out ok...