Hi. I really love SourceTree and it helps me 
I am using SourceTree for Node.js GIT repository, and it has package-lock.json.

package-lock.jsond is changed when a node module is added, removed and updated.
The size of package-lock.json is approximately 500kb but it has many changed lines.
Then SourceTree is really heavy when show the diff.
When I clicked a commit including the file, when I check the staged files including the file..
How can I avoid the situation?
Thanks