Hi,
That option just "locks" the value of the delay of each frame. Some frames may take more time than expected to write on disk. Example:
Option Enabled:
Frame 1: 66 ms. (It actually took 70 ms to write on disk)
Frame 2: 66 ms. (It actually took 89 ms to write on disk)
Frame 2: 66 ms. (It took less than 66 ms to write on disk)
Option Disabled (The delay to write on disk is measured):
Frame 1: 70 ms.
Frame 2: 89 ms.
Frame 3: 66 ms.
That option just "locks" the value of the delay of each frame. Some frames may take more time than expected to write on disk. Example:
Option Enabled:
Frame 1: 66 ms. (It actually took 70 ms to write on disk)
Frame 2: 66 ms. (It actually took 89 ms to write on disk)
Frame 2: 66 ms. (It took less than 66 ms to write on disk)
Option Disabled (The delay to write on disk is measured):
Frame 1: 70 ms.
Frame 2: 89 ms.
Frame 3: 66 ms.