refactor(core): optimize reducers performance

packages/core/src/utils/objects/cleanObject.ts

@@ -4,17 +4,14 @@ import {isProtectedKey} from "./isProtectedKey.js";
  * @param obj
  * @param ignore
  */
-export function cleanObject(obj: any, ignore: string[] = []): any {
+export function cleanObject(obj: Record<string, unknown>, ignore: string[] = []): any {
   return Object.entries(obj).reduce((obj, [key, value]) => {
-    if (isProtectedKey(key) || ignore.includes(key)) {
+    if (isProtectedKey(key) || ignore.includes(key) || value === undefined) {
       return obj;
     }
 
-    return value === undefined
-      ? obj
-      : {
-          ...obj,
-          [key]: value
-        };
-  }, {});
+    obj[key] = value;
+
+    return obj
+  }, {} as Record<string, unknown>);
 }

packages/core/src/utils/objects/deepMerge.ts

@@ -64,6 +64,8 @@ export function deepMerge<T = any, C = any>(source: T & any, obj: C & any, optio
     return [].concat(obj).reduce((out: any[], value: any) => reducer(out, value, options), [...source]);
   }
 
+  const newObj = createInstance(source);
+
   return [...objectKeys(source), ...objectKeys(obj)].reduce((out: any, key: string) => {
     const src = source && source[key];
     const value = deepMerge(src, obj && obj[key], {
@@ -75,9 +77,8 @@ export function deepMerge<T = any, C = any>(source: T & any, obj: C & any, optio
       return out;
     }
 
-    return {
-      ...out,
-      [key]: value
-    };
-  }, createInstance(source));
+    out[key] = value;
+
+    return out;
+  }, newObj);
 }