Yeah, the computer games often end up in tears. He gets really frustrated with them. I'm not too worried about his fluency because I believe that eventually it will become more second nature for him.
Computer games are a bust with my son - because along with perfectionism issues, his anxiety level goes through the roof when he is faced with a situation where someone in distress will be rescued if he remembered all the math facts on time and punched them in without mistake. He used to be in tears and have nightmares after working on such computer games.
So, we went with other approaches to drill his facts - one was a mnemonics based program for easy recall. Another was the Soroban mental abacus method (outsourced to a tutor, because I am not familiar with it). The combination seems to have broken the "slow processing speed" barrier for math facts.
