For speed, it doesn't seem that fast but a bigger issue I've had with pvp is black hole, and since this is a rainbow deck, it definitely isn't blackhole proof...
is the OP saying that since the low cost of the cards or the mass amount of towers, it shouldn't have much trouble with black holes?
Maybe I'm reading this wrong and PVP doesn't carry over to arena...? I can see folks ragequitting after a few turns of seeing this deck roll. Until you hit an hourglass, it doesn't seem faster then any other deck but once those come out, it does seem pretty decent.
Would it be worth switching sanctuary for one bond and swapping the photon for the PU/TU like pulli suggested?
Maybe dropping 1 or 2 towers for the above items? would that throw off your quantum production too much?