Hope this helps No, it's not too heavier on Ubuntu or Mac as much on Windows. It's only approx 350 mb on Ubuntu. Due to a lot of DLL files compatibility with Windows, it is too much heavy and laggy on Windows.
this will help You should define and commit a proper .gitignore file for Android Studio (and in my opinion for IntelliJ/Eclipse too). The .gitignore tells you what kind of files you don't want git to track. This is one of many examples for Android projects:
# IntelliJ IDEA
android studio : linux, windows, and poor performances
wish helps you If you're using Dual Boot then it shouldn't slow down your system at all. Although it won't make sense to have Android Studio installed in Windows when you have it at your Linux since you might get confused on which OS you saved which project. It won't slow down your system because your Windows OS only "sees" the HD Partition for Windows, the same is the case for your Linux Partition. That being said, Linux can only see and touch the resources in the HD allotted for Linux. And since you won't be able to run the two OS at the same time, you won't have RAM problems (which is a problem with Virtual Machines).
Android Studio : Error while Installing APKs (Path confusion from Windows to Linux)