Version
2.6.0
Reproduction link
https://github.com/creativetimofficial/material-dashboard-angular2
Operating System
windows
Device
windows
Browser & Version
chrome
Steps to reproduce
ng serve
What is expected?
It should be faster than 9 second
What is actually happening?
it takes 53826ms in first build, and 9510ms in a slight change (append a char in string)

Solution
Intel(R) Core(TM) i3-9100 CPU @ 3.60GHz 3.60 GHz
16.0 GB
Angular CLI: 12.1.2
Node: 15.3.0 (Unsupported)
Package Manager: npm 7.0.14
Additional comments