Open Radar

 
Summary:
EFI lags when it scales down partition icons in order to fit all of them on the screen.

Steps to Reproduce:
1. Insert portable hard drive with multiple bootable partitions into the USB or Thuderbolt Ports.  (In my setup, I have a total of 8 partitions.)
2. Power on the machine.  (In my setup, I have a MacBook Pro with Retina Display.)
3. Hold down the alt/option key.
4. EFI lags when it has to scale down the partition icons in order to fit all 8 of them on the screen.

Expected Results:
On machines that use the gray style EFI, there is no lag when scaling down partition icons.  On machines that use the black style EFI, there is always a lag when it scales down partition icons.  I would expect the black style EFI to function as fluidly as the gray style EFI does.

Actual Results:
The black style EFI always lags when it scales down partition icons.

Version:
I'm not sure where to check the EFI version.  If you could tell me how to get that information, I will add it to this report.  :)

Notes:
NONE

Configuration:
NONE

Attachments:
NONE