Revert "производительность Qt"
Revert "производительность Qt"

This reverts commit 6c5d74dedc8804f773e9ec689722cef3c571b034.

novacoin-project/novacoin,byncoin-project/byncoin,fsb4000/novacoin,elambert2014/novacoin,fsb4000/novacoin,byncoin-project/byncoin,penek/novacoin,byncoin-project/byncoin,elambert2014/novacoin,byncoin-project/byncoin,byncoin-project/byncoin,penek/novacoin,novacoin-project/novacoin,elambert2014/novacoin,novacoin-project/novacoin,elambert2014/novacoin,penek/novacoin,fsb4000/novacoin,elambert2014/novacoin,fsb4000/novacoin,byncoin-project/byncoin,novacoin-project/novacoin,elambert2014/novacoin,fsb4000/novacoin,novacoin-project/novacoin,fsb4000/novacoin,penek/novacoin,penek/novacoin,penek/novacoin,novacoin-project/novacoin