Why is grunt-sass is slower than using sass alone?

Question

I have used sass alone(not using grunt) and thorough grunt too. What I observe is grunt-sass is lot slower than using sass alone. What could be the possible reasons for this? I have disabled the sourceMap in grunt-sass by following code:

compile: {
           options: {
            style: 'nested',
            sourcemap: 'none',
           }
}

Answer 1

Grunt-contrib-sass is originally based on Ruby and is much slower than grunt-sass which is based on libsass

Be carefull to choose the libsass version, which shouldn't be slower when used through a gulp/grunt plugin.