There's nothing wrong with your deck, but when you can afford to, try a Mummy version. I know that Mummy + Reverse Time means 2 cards instead of 1...but it's 4 quanta instead of 9. A HUGE difference, especially early in the match. With enough SoR's, you really don't need

. Here's the deck I use:
Hover over cards for details, click for permalink
4vj 4vj 4vj 4vj 4vj 4vj 6rq 6rq 6rq 6rq 6rq 710 710 71b 71b 71b 71d 71d 71d 71d 71d 71d 74g 75m 75m 7dm 7gq 7gq 7q4 7q4 7q4 7q4 7q9 7q9 7q9 7t9 8pk
I have about 80% win ratio in PvP2 just as you do. I've had winning streaks of 10-12 games, maybe more. It's really a great deck. The nifty thing about mummies is that they are cheap and easy to send out, so you don't need to fill your deck with towers. In fact, I have only 2 towers and 2 pendulums in the whole deck. I've tried every combination of

/

towers/pendulums/mark, but I think to have 2

towers, 2

pendulums, and

mark is truly best. I've tried with and without Chimera, but with the addition of Psions and that shard that makes immortal creatures deal spell damage....Chimera is necessary. You can't play the stall game, you have to beat them fast. (Explosion and Steal are there too, but can be used for other things as well.) Novas bring to the deck any card you want that uses few quanta, and Explosion, Steal, and Purify have saved me more times than I can count. I've also tried with varying amounts of Sundials, but I believe 3 is a good number. They have numerous uses, and putting one in your deck doesn't really ever hurt.
Bone Walls are amazing! And they have great synergy with Scarabs. They also make Explosion and Steal no more useful than a Spark...hehehe.

Every deck needs defenses, and Procrastination just isn't the best.
Now, as far as the number of cards in your deck goes, I think in all honestly that having slightly over 30 (not a bunch; 32-36 is good) is a positive thing, because it means you're more likely to win stall wars against people with 30-card decks. The number of cards in my deck being so high has saved me before. I could do without the Sundials -- they're still up for debate -- but even 33 cards sounds like a good number if I were to get rid of them.
Anyway, you DO have too many cards in your deck. Slim it down some, even if you don't use my idea. (But please do at least consider it...it's quite awesome!)
EDIT: This deck doesn't work nearly as well without upgrading the RT's. If you do ever do this deck, upgrade them first!