Browser freezing issue after upgrading angular.

After upgrading form angular 12 to 14, I am facing browser freezing issue. Can anyone help me on this?

Packages -

"dependencies": {
"@angular/animations": "^14.3.0",
"@angular/cdk": "^13.3.9",
"@angular/common": "^14.3.0",
"@angular/compiler": "^14.3.0",
"@angular/core": "^14.3.0",
"@angular/forms": "^14.3.0",
"@angular/platform-browser": "^14.3.0",
"@angular/platform-browser-dynamic": "^14.3.0",
"@angular/router": "^14.3.0",
"@cds/angular": "^6.3.1",
"@clr/angular": "13.14.3",
"@clr/icons": "13.0.2",
"@clr/ui": "13.14.3",
"@swimlane/ngx-charts": "^17.0.0",
"@webcomponents/webcomponentsjs": "^2.0.0",
"buffer": "^6.0.3",
"chart.js": "^2.9.4",
"dompurify": "^2.3.1",
"karma": "^6.3.20",
"karma-jasmine": "^4.0.1",
"keycloak-angular": "^12.2.0",
"keycloak-js": "^19.0.3",
"mutationobserver-shim": "^0.3.2",
"ng2-charts": "^2.4.2",
"rxjs": "^6.6.3",
"rxjs-compat": "^6.3.3",
"stream": "0.0.2",
"timers": "^0.1.1",
"ts-helpers": "^1.1.1",
"zone.js": "~0.11.4"
}