Thank you for responding.

I know the 5-10 seconds freezes right before a block confirmation, they're nothing compared to these random qt-freezes, who last for 5-10m or longer. They seem to come at random. My HD light isn't doing anything. When another block comes, I can see & hear my HD but when it freezes, nothing happens. The window turns white and it's not responding. then suddenly, 5 blocks are confirmed.

I have a shitty 250GB HD from Hitachi, only 8GB free space so that could be a problem.
;
I've lost my workers because I can't give them orders when freezing happens. I'm a bomber but not anymore because it's impossible to time sometimes. I spent a whole day stealing coins and when I'm finally close to base, somebody steals my coins probably because I'm just standing still or goin in a straight line like a retard, because of the freeze.

I'm verry happy that they're working on alternative clients, really looking forward to that.
The game is very addictive and easy to play, but things could be much smoother.