Perfomance Issues... but how to solve?

[marlonivo]

Is there a Way To make the GitHub Website Builder look like the Browser Website Builder.
Q: But Why?
A: Because my website is getting pretty huge now, and my browser can't handle it anymore without lagging. So need more power and hoping that the local Grape Repo option is the solution, even though I don't know if this fixes the issue, but i unfortenetly found out that the github Repo has a quite different Gui. Pictures following to make my point clear:

My Question now is, how to make this ⬆️ to look like ⬇️:

Thanks for the Attention, and apologizes for my low grade Knowledge.