For others coming across this problem:   SAS tech support (probably including Casey above!) created a new .DLL file which helped improve matters - hopefully this will be included in a forthcoming hotfix.   Otherwise, here is the advice I received on how to minimise the problem:   the slowdown now seen will be directly related to the size of your EG project and the number of uncommitted files in GIT. SAS have to map each uncommitted SAS file to a program in the project, which means we are doing much more work than bringing up a single commit dialog like an external git client would.   R&D have commented that the easiest work around right now is for you to reduce the number of uncommitted files you have in GIT.    This seems like a reasonable workaround - thanks to tech support for being very responsive!   ... View more