I'm using Babel ES2015 source maps in small-mid projects and usually their accuracy is acceptable though sometimes you'll meet weird lines (which need several '

I'm using Babel ES2015 source maps in small-mid projects and usually their accuracy is acceptable though sometimes you'll meet weird lines (which need several 'step-over's before you finally step over them). ... or do you mean whether we get huge performance issues with the Typescript source maps while debugging large scale projects or not?