click to a commit that has a big file(2000+lines),sourcetree be slowly for view(5s+)

[cocoi]

sourcetree version:3.4.8

i found a question when click to commit that has a file with 2000+ lines, the sourcetree will be slowly, more than 5s.

and the sort of  files by phonetic initials，so sourcetree will be view the first file，that will be get it

how to solve it？