If Chrome stalls whenever you type into the address bar – either to execute a search or to type in an address, then it is possible that your browsing history has become very bloated. The Chrome database checks through your history every time you type a letter. If that history is very big, then searching through that data can draw on a lot of resources.
The fix? Clear your browsing history.
Yes this means losing some very useful data. So only do it if you really can’t take it anymore…