Not just slower , it does not fit to native look and feel, You are not going to believe me how much time I spent for fixing ridiculous font rendering for Android Studio, at the end I just gave up (in Ubuntu. I tried all kind of patches, TuxJdk, changing arguments for OpenJdk, OracleJdk , changing fontconfig, using infinality and anything you can imagine. nothing works). Right now I am switching to Xamarin,Perfect support from Microsoft (because it is important strategic product for Microsoft. I remember one year ago I predict Microsoft will buy xamarin and open source it).Bash is coming to Windows and lets be honest , none of java's IDEs can compete with Visual Studio.

and one of the worst thing about google is they don't deliverer feature they promise. I did a lot of NDK development. I use emacs for that , but eclipse was acceptable too. But I remember last year they promised full NDK support in android studio, but they haven't introduced it yet. This is what absolutely I will not tolerate from a company. If it is not ready , then don't introduce it in development conference , if it is ready why it took so long (1 year ??? and still no news).

another point about Google is they don't absolutely care about developers. Who are we kidding ? no one can deny for years developer begged google for new,faster,better Android emulator. But they did nothing. Right after Microsoft introduced their Hyper-V based android emulator which is fast as hell, They developed new virtual machine. (they use qt5 for its interface). Because they felt threatened by Microsoft.I promise if it wasn't for that the old emulator was still there.