[can16358p]

While I agree about devs should be testing on slow devices, the particular target audience of the site generally have pretty decent machines (including two that I have) and there isn't much reason for the site lag. It's not really doing any 3D rendering with complex shaders or video filtering; it just shows changed lines in two files. That shouldn't lag.

[chipsrafferty]

It should be the same speed as running git diff in your console. And it should support histogram style diff...

[m0llusk]

I code on ten year old laptops and use Bitbucket CLI in part because of all this.