diff --git a/apps/performance/christmas-web-worker/src/app/app.component.ts b/apps/performance/christmas-web-worker/src/app/app.component.ts
index a7e757f..ba55d27 100644
--- a/apps/performance/christmas-web-worker/src/app/app.component.ts
+++ b/apps/performance/christmas-web-worker/src/app/app.component.ts
@@ -1,12 +1,12 @@
 import { CommonModule } from '@angular/common';
 import { Component, inject } from '@angular/core';
-import { PrimeService } from './prime-number.service';
+import { HeavyCalculationService } from './heavy-calculation.service';
 import { UnknownPersonComponent } from './unknown-person/unknown-person.component';
 
 @Component({
   standalone: true,
   imports: [CommonModule, UnknownPersonComponent],
-  providers: [PrimeService],
+  providers: [HeavyCalculationService],
   selector: 'app-root',
   template: `
     <unknown-person [step]="loadingPercentage()" class="relative grow" />
@@ -22,11 +22,11 @@ import { UnknownPersonComponent } from './unknown-person/unknown-person.componen
   },
 })
 export class AppComponent {
-  primeService = inject(PrimeService);
+  private heavyCalculationService = inject(HeavyCalculationService);
 
-  loadingPercentage = this.primeService.loadingPercentage;
+  readonly loadingPercentage = this.heavyCalculationService.loadingPercentage;
 
   discover() {
-    this.primeService.calculatePrimeLength();
+    this.heavyCalculationService.startLoading();
   }
 }
diff --git a/apps/performance/christmas-web-worker/src/app/app.config.ts b/apps/performance/christmas-web-worker/src/app/app.config.ts
deleted file mode 100644
index 81a6edd..0000000
--- a/apps/performance/christmas-web-worker/src/app/app.config.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-import { ApplicationConfig } from '@angular/core';
-
-export const appConfig: ApplicationConfig = {
-  providers: [],
-};
diff --git a/apps/performance/christmas-web-worker/src/app/heavy-calculation.service.ts b/apps/performance/christmas-web-worker/src/app/heavy-calculation.service.ts
new file mode 100644
index 0000000..84ce1e6
--- /dev/null
+++ b/apps/performance/christmas-web-worker/src/app/heavy-calculation.service.ts
@@ -0,0 +1,30 @@
+import { Injectable, computed, signal } from '@angular/core';
+
+@Injectable()
+export class HeavyCalculationService {
+  private finalLength = 664579;
+  private loadingLength = signal(0);
+
+  loadingPercentage = computed(
+    () => (this.loadingLength() * 100) / this.finalLength
+  );
+
+  startLoading() {
+    this.randomHeavyCalculalationFunction();
+  }
+
+  private randomHeavyCalculalationFunction() {
+    for (let num = 2; num <= 10000000; num++) {
+      let randomFlag = true;
+      for (let i = 2; i <= Math.sqrt(num); i++) {
+        if (num % i === 0) {
+          randomFlag = false;
+          break;
+        }
+      }
+      if (randomFlag) {
+        this.loadingLength.update((l) => l + 1);
+      }
+    }
+  }
+}
diff --git a/apps/performance/christmas-web-worker/src/app/prime-number.service.ts b/apps/performance/christmas-web-worker/src/app/prime-number.service.ts
deleted file mode 100644
index 9ef52fa..0000000
--- a/apps/performance/christmas-web-worker/src/app/prime-number.service.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-import { Injectable, computed, signal } from '@angular/core';
-
-@Injectable()
-export class PrimeService {
-  private finalResult = 664579;
-  private primesLength = signal(0);
-
-  loadingPercentage = computed(
-    () => (this.primesLength() * 100) / this.finalResult
-  );
-
-  calculatePrimeLength() {
-    this.findPrimesUpToLimit(10000000);
-  }
-
-  private findPrimesUpToLimit(limit: number) {
-    for (let num = 2; num <= limit; num++) {
-      let isPrime = true;
-      for (let i = 2; i <= Math.sqrt(num); i++) {
-        if (num % i === 0) {
-          isPrime = false;
-          break;
-        }
-      }
-      if (isPrime) {
-        this.primesLength.update((l) => l + 1);
-      }
-    }
-  }
-}
diff --git a/apps/performance/christmas-web-worker/src/main.ts b/apps/performance/christmas-web-worker/src/main.ts
index 514c89a..31c5da4 100644
--- a/apps/performance/christmas-web-worker/src/main.ts
+++ b/apps/performance/christmas-web-worker/src/main.ts
@@ -1,7 +1,4 @@
 import { bootstrapApplication } from '@angular/platform-browser';
-import { appConfig } from './app/app.config';
 import { AppComponent } from './app/app.component';
 
-bootstrapApplication(AppComponent, appConfig).catch((err) =>
-  console.error(err)
-);
+bootstrapApplication(AppComponent).catch((err) => console.error(err));