It's not going to change what's already been pointed out. Any change in the level of success that you get with slower discs will only be coincidental and will not be related to the burn speed. If they work better, it will be because of some other factor, such as better quality media, better reflectivity, different format (+R vs -R), etc. And that's not to say that slower media will necessarily exhibit those better characteristics, they may or may not depending on what you buy.
If you're getting good burns with your Sony discs, then burn speed is not the problem. Your game console may be very picky, so the Sony discs may be a problem because of reflectivity of the disc, maybe you need to try -R rather than +R, maybe you need to bitset the +R discs to -ROM, etc. Good luck in finding the right combination, but burn speed is not the issue.