development build is taking too long.

[Saeed Jalali]

Is your feature request related to a problem? Please describe.
When I start to run in development mode, build time is very long. For example 161674ms.

[Can Sahin]

So my case is generally around 15000ms. But I added exclude: node_modules rule to ts loader. Can you check if it speeds up. I guess it will. Just have a look at the commit a583287

If not can you re-open the issue please