Unity 5.1: MonoDevelop lags a lot on 13 inch Macbook Pro

Hello, I am facing a lot of problems with my version of MonoDevelop Bundled with Unity 5.1.

I am running Unity on the 13 inch Retina Macbook PRO, on Mac OS X Yosemite.

Monodevelops works fine for like 5 minutes after starting the IDE. But then it causes constant lags and freezes while typing any code, or while trigerring auto-complete. Its a very significant lag and makes it very irritating to code with Monodevelop. My mac constantly keeps on showing me the color wheel indicating that monodevelop is loading.

I did a few things to try and solve this problem but to no avail: -> Disabled Version Control in the MonoDevelop IDE -> Disabled Code Folding -> Disabled Auto Completion

Please let me know if there is anything else I can do to solve this problem.

If not, is there any other IDE which I can integrate with Unity3D to code C# for Unity.