I have VS project with .wsp containing custom forms for list. I need to tune some details on the form - sometimes in aspx file, sometimes in code behind (.cs).

What are the options to tune it without re-deploying wsp after every change (it takes long time to retract, recycle apppool, deploy,..)?

I can edit .aspx directly in 15\TEMPLATES\FEATURES subfolder but still the compiled code is cached - can I (temporarily) disable caching for the development? How about codebehind?

I would appreciate any tips on efficient development (how to quicky tune/test smaller changes).

(SharePoint 2013, Visual Studio 2013, Windows Server 2012R2)