RadPageView has ten pages. Each page contains TableLayoutPanel (2 columns and 10 rows) and in each cell there is RadControl (textBox, checkbox etc). 

The result is that when pages are being changed, RadPageView show slow performance. Same scenario with standard controls works well.

Further investigations on the case show this:
"I had the same issue and I found other workaround. In my case I had TableLayoutPanel with RadSplittButton in each cell and each RadSplitButon was set as Dock = Fill. If I set AutoSize = false for RadSplitButton then the performance was ok and everything looks ok too."