This phone has no lags at all. I can't notice any lag.
The processor is powerfull, it is "old" and it is not dual core but, come on, this is a mobile device, puting a dual core 1.5 Ghz processor on a mobile phone is so stupid.
My lap top has 2 Ghz processor, and it works like it should.
It needs some polishing and that's it.