Extremely slow work when switching branches

We are using a lot of submodules in our repositories. When I am switching between branches It takes from 50sec to 2-4 minutes for every switching!

I needn't update submodules recursive every time, because they are changing very seldom and it takes too many time.

I found there was an option

https://blog.sourcetreeapp.com/page/4/

• New repository option to disable recursive submodule operations

But I can't find this option in current version SourceTree 2 for Windows! Without this option our working process with SourceTree often like as hell ((

Many of my colleagues are forced to switch to other GUI programs for this reason...

I found similar discussion with such trouble:

https://community.atlassian.com/t5/SourceTree-questions/Recursive-submodule-checkout-on-every-branch-switch/qaq-p/211723?posted=595255#U595255

Correct this trouble please or add an option to disable recursive modules updates when switching branches

Thanks