Node on my machine start very long

I’ve installed node on my machine.
My bitcoinz.conf looks like below:

rpcuser=UserP-}i`%l#wAad_,
rpcpassword=Passqwdtbi-^Y+!%@?h
mainnet=1
gen=1

addnode=btcz.kovach.biz

I start my node: /src/bitcoinzd
And node started, but it load transaction very long. I can’t call any command sometimes even for 2h.