Does ordering GCMS notes delay the file processing?
No, ordering GCMS notes does not delay the processing of your file in any way. It has no negative impact on your file and an applicant can order as many GCMS notes as he desires. In some cases where there has been no movement on the file a movement was seen after the GCMS notes were request. This is because before the GCMS notes are released an officer has to look into your file even when he was not supposed to. Therefore ordering GCMS notes is safe and sometimes beneficial.
Source: https://getgcms.com/
Not official source, but something to think about.
True, I had the same doubt when I applied through gcmsapply.com. They confirmed that It doesn't have nay effect on the outcome of our application. I t just show present status of the application and all the details they have gathered
I do not think GCMS notes boosts the application timeline. It is meant only for getting detail information on your application and stages pending during the process.
I will leave it for forum members to comment, If someone had such experience where application processing has been boosted during GCMS notes request.
I had the same doubt when I applied through gcmsapply.com. They confirmed that It doesn't have any effect on the outcome of our application. I t just show present status of the application and all the details they have gathered as part of the application. I received gcms in 23 days but the visa application decision was as usual time line.