That bike is probably moving faster than you think it’s moving.
It seems to me that most motorists think bikes don’t, under any circumstance, move any faster than a speed walking pedestrian. It’s not true. Sometimes it’s best to wait behind the cyclist for a bit – he may be going 3 mph slower than you but, and trust me on this, it’s not that big of deal to wait a few minutes for an opportunity to pass safely. You guys will probably end up at the same red light anyway.