Change of address while pending application

My sister had her biometrics on 9/21 and is still under review. Has anyone updated their address while in review? Will it slow down the process even more if she makes any changes?

you know i had those same questions but i had no choice but to call and change my address.. its required by law to change it if you have a pending case. once u have moved they give you 10 days to change it. The lady said it should not affect anything.