Support Will I lose any data?

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http://androidforums.com – Hi everyone, Last night I updated from Gingerbread to ICS 4.0.4 and am finding my phone now to be very laggy, specifically in responsiveness of the keyboard and scrolling web pages. I am using GO Launcher EX and tried switching to the default Google launcher but the problems persist. I read here that if I go to Settings/Apps/Google Services Framework and press Clear Data that it might help fix the problem. The thing is, I'm not sure if that will physically delete anything from the phone. I know it's not a factory reset but I still want to be sure I won't regret doing it. So does anyone (General)