Hi Bob,
This seems to be something that is local to you or your laptop. There is no apparent reason why there would be a lag at our end, unless there is some kind of link between what you are typing and our database, however we can't see anything that would cause this to happen.
Could your Anti-Virus or a similar program be running at the same time? This may cause your computer to slow down as it makes resources available for the program to run efficiently. Also, the forum has loads of information to load too, so if you have a slow internet connection this may also be a cause of the lag when you type.
I am not aware of anyone else experiencing a similar problem, which makes me think this is not something that is happening our end, and potentially localised to you and your laptop.
If I can help any further, please let me know.
Kindest regards,
Monty