My Venom Deck

So first of all this is my Venom deck, I need some constructive tipps how to increase this decks Power.
Main Problems I have:
Speed
Summoning Vennominaga fast enough
Field control

Do you have some usefull ideas for me?

Nobody can give me a hint?
Hmm..

bumb

Take out the normal monster :/

That dont helps me :/
The point is, they have strong DEF to stall against waekened monsters and won't get destroeyed from Venom Swamp and I can mill them with Snake Rain, youre right Normal monsters are just slow and suck in this deck.

But thats why I asked for help, I could get rid of them for a Reptilianne Naga, or what else is there?