diff --git a/src/lib/misc/hidden-action/hidden-action.component.ts b/src/lib/misc/hidden-action/hidden-action.component.ts
index 0447279..c379b72 100644
--- a/src/lib/misc/hidden-action/hidden-action.component.ts
+++ b/src/lib/misc/hidden-action/hidden-action.component.ts
@@ -1,9 +1,10 @@
-import { Component, EventEmitter, Input, Output } from '@angular/core';
+import { ChangeDetectionStrategy, Component, EventEmitter, Input, Output } from '@angular/core';
 
 @Component({
     selector: 'iqser-hidden-action',
     templateUrl: './hidden-action.component.html',
-    styleUrls: ['./hidden-action.component.scss']
+    styleUrls: ['./hidden-action.component.scss'],
+    changeDetection: ChangeDetectionStrategy.OnPush
 })
 export class HiddenActionComponent {
     @Input() requiredClicks = 4;
diff --git a/src/lib/utils/functions.ts b/src/lib/utils/functions.ts
index ebb6d58..1ad6bd7 100644
--- a/src/lib/utils/functions.ts
+++ b/src/lib/utils/functions.ts
@@ -18,10 +18,10 @@ export function humanize(value: string, lowercase = true): string {
 
 export const log = tap(console.log);
 
-export const toNumber = (str: string) => {
+export function toNumber(str: string): number {
     try {
         return parseInt(`${str}`.replace(/\D/g, ''), 10);
     } catch (e) {
         return 0;
     }
-};
+}
diff --git a/src/lib/utils/pruning-translation-loader.ts b/src/lib/utils/pruning-translation-loader.ts
index 55a8b07..3ec063c 100644
--- a/src/lib/utils/pruning-translation-loader.ts
+++ b/src/lib/utils/pruning-translation-loader.ts
@@ -3,26 +3,27 @@ import { TranslateLoader } from '@ngx-translate/core';
 import { map } from 'rxjs/operators';
 import { Observable } from 'rxjs';
 
+interface T {
+    [key: string]: string | T;
+}
+
 export class PruningTranslationLoader implements TranslateLoader {
     constructor(private _http: HttpClient, private _prefix: string, private _suffix: string) {}
 
-    getTranslation(lang: string): Observable<Record<string, unknown>> {
-        return this._http
-            .get(`${this._prefix}${lang}${this._suffix}`)
-            .pipe(map((result: Record<string, unknown>) => this._process(result)));
+    getTranslation(lang: string): Observable<T> {
+        return this._http.get(`${this._prefix}${lang}${this._suffix}`).pipe(map(result => this._process(result as T)));
     }
 
-    private _process(object: unknown): Record<string, unknown> {
+    private _process(object: T): T {
         return (
             Object.keys(object)
                 // eslint-disable-next-line no-prototype-builtins
                 .filter(key => object.hasOwnProperty(key) && object[key] !== '')
                 .reduce(
-                    (result: Record<string, unknown>, key) => (
-                        (result[key] = typeof object[key] === 'object' ? this._process(object[key]) : object[key]),
-                        result
+                    (result: T, key) => (
+                        (result[key] = typeof object[key] === 'object' ? this._process(object[key] as T) : object[key]), result
                     ),
-                    {},
+                    {}
                 )
         );
     }