Newer Macbook slower than Old one.

I switched from a Macbook 4,1
2.0ghz 800mhz FSB with 2gb of RAM (667mhz) x3100 to a newer macbook 5,1, same specs but 1066mhz FSB and the new nvidia card.

I used the migration assistant tool to transfer all account,settings and files to the new mac.
My computer seems to lag more when opening Word, Excel, Powerpoint 2008 and having multiple tabs on firefox and ichat, mail.app, and icalendar open.

My old computer did not lag this much, only a bit when opening one of the office suites but not while switching.

Shouldn't my newer computer with a faster bus speed be performing better?
Does the fact that I migrated settings and stuff affect performance? (same reason a clean install is better than an upgrade?)

Much appreciated!

 

It might be the reason. It should certainly be faster unless your new one has less ram and slower hard drive etc (though I doubt it assuming that you did not make any upgrades to the old one).

 

After doing migration assistant you need to go into disk utility and repair permissions. that should help increase performance.