I think the bloatware slows the tab performance. Compare to the Nexus 10 (I understand that Nexus has better CPU, RAM, etc), but I look at the task manager, almost 80% are already used (somehow my RAM only shows 800 MB instead of 1 GB on the Task Manager? and 600 MB already in used)
I also prefer Nexus stock UI vs the Samsung UI as well
I also prefer Nexus stock UI vs the Samsung UI as well