I hesitate to open this issue on angular page. I opened same issue title 2 week ago here without AOT : v7.rc.0 serving 2x - 3x slower than stable versions on my projects after moving to angular 7.0.0 all is slower (jit seems OK)

I'm submitting a...

[ x ] Performance issue
[ x ] Bugs

Current behavior

All was OK with cli7rc3 and angular 6.1.10
This morning after updating to angular 7.0.0 serving with JIT is ok but serving with AOT or build my application or generating i18n xmb file is 2-3 times slower

Expected behavior

Get build/extract i18n time like with cli7rc3 and angular 6.1.10

1. Minimal info of AOT serving

0. My project have >1200 files.
1. Before update node --max-old-space-size=8192 ./node_modules/@angular/cli/bin/ng serve --aot --sourceMap=false --disableHostCheck --port=4200 first build finish in 45seconds and Now blocking:

3mn => 11% building modules 9/10 modules 1 active ...ojects\i10\src\assets\styles\styles.css and rest steps seems ok It finish in 228737ms

2. Before update refresh(file edit) it finish in 30seconds and 3th refresh in 25seconds and Now it refresh in 200277ms and 3th refresh in WARNING : 381979ms it is >6 minutes

2. Minimal info of extract i18n

1. Extract is 3-4 times slower than before update

Here is my angular.json config file

I tried debug with ndb and share my profile data with ng s --aot but it seems not work ndb crash ( disk is highly used...):

Environment

Angular CLI: 7.0.1
Node: 10.12.0
OS: win32 x64
Angular: 7.0.0
... common, compiler, compiler-cli, core, forms, http
... language-service, platform-browser, platform-browser-dynamic
... router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.10.1
@angular-devkit/build-angular     0.9.0-rc.3
@angular-devkit/build-optimizer   0.9.0-rc.3
@angular-devkit/build-webpack     0.9.0-rc.3
@angular-devkit/core              7.0.1
@angular-devkit/schematics        7.0.1
@angular/cdk                      6.4.7
@angular/cli                      7.0.1
@angular/material                 6.4.7
@ngtools/webpack                  7.0.0-rc.3
@schematics/angular               7.0.1
@schematics/update                0.10.1
rxjs                              6.3.3
typescript                        3.1.3
webpack                           4.19.1

Others:
maybe related to : angular/angular#26572 , #12645

@filipesilva heya, sorry to make noise again if you consider this as angular compiler problem(as I think) close or move it please