AWRL1432: What is the time difference between 1.8V and 1.2V output if using 1.8V BOM optimized topology?

Tool/software:

Hi,

What is the time difference between 1.8V and 1.2V output? We're using AWRL1432 BOM optimized 1.8V topology and the 1.8V stable time and 1.2V output time difference is around 810 us.

Is this correct? or something wrong? (See the diagram below, CH4, CH2)