Depends on how many object you were using - DBP Retail was amazingly fast in some respects, and rediculously slow in others. However from what I've seen of Patch 4 its pretty darn good.
Personally I don't think DBP should have been released to retail in the state it originally was, (on the Net for early adopters YES in shops for newcomers NO) but all that is forgotten now due to Patches. I just feel sorry for people not online who buy DBP in Game or something on the high street, and don't realise all the patches that are available
Once all FastTrak's initial batch runs out, the new Patch 4 or even 5 version should be included on all CDs - that way eitehr DBS or FastTrak could feel a lot happier about putting some money and effeort behind really promoting it
Just my 2 cents