What should I expect after a Clean Uninstall?

I have had nothing but problems with ProTools 10.3.4 Slow response, Always getting the "Increase Hardware Buffer Size" even with only 9 tracks of drums and no plugins in use. Newer MacBook Pro External Thunderbolt HD and so on. I have been on the Forum and gone through everything possible but it still barely runs. I have been using proTools for over 10 years so I am very familiar with it. I am also disgusted with Avid's (Lack of) customer support. (Sorry for the rant!) I am going to do a clean uninstall and reinstall after I limp through this project. Can I expect issues with my iLok or will it be ok? Thanks!