UITABLEVIEW comes to a crawl when adding a UIABEL with cornerRadius to each cell

Question

I'm adding a UILabel to each cell in my table view. This presents no problem innitially. When I round the corners of the UILabel using layer.cornerRadius scrolling the table view grinds to a halt.

 UILabel *label1 = [[UILabel alloc] initWithFrame:CGRectMake(cell.bounds.origin.x+10 ,5, 30, 30)];
 label1.backgroundColor = ([[managedObject valueForKey:@"color"] hasPrefix:@"FFFFFF"]) ? [UIColor blackColor] : color;
 label1.layer.cornerRadius = 10.0f;
 [cell addSubview:label1];

Answer 1

You might want to see how Tweetie does it (scrolls smoothly).

Answer 2

I've tried this before myself and found that it's useless for any kind of view that moves. You should create an image with rounded corners and add that as the background of your label instead.