At first glance, I'm not seeing anything in the past couple days that would account for sluggishness. The IP change is primarily an issue if the news IPs have not been whitelisted for resources that require them to be, at which point it's possible that queries can fail. If your queries are all working that should indicate you were successfully switched over.
If you were experiencing sluggishness earlier could you share when it was and if it was with any resource or app in particular? That might help identify what happened.