diff --git a/lib/internal/bootstrap/loaders.js b/lib/internal/bootstrap/loaders.js
index d5715aa9f8c666..d939c2911d0df3 100644
--- a/lib/internal/bootstrap/loaders.js
+++ b/lib/internal/bootstrap/loaders.js
@@ -44,15 +44,18 @@
 /* global process, getLinkedBinding, getInternalBinding, primordials */
 
 const {
+  ArrayPrototypeMap,
+  ArrayPrototypePush,
   Error,
-  Map,
   ObjectCreate,
   ObjectDefineProperty,
   ObjectKeys,
   ObjectPrototypeHasOwnProperty,
   ReflectGet,
+  SafeMap,
   SafeSet,
   String,
+  StringPrototypeStartsWith,
   TypeError,
 } = primordials;
 
@@ -135,7 +138,7 @@ let internalBinding;
     let mod = bindingObj[module];
     if (typeof mod !== 'object') {
       mod = bindingObj[module] = getInternalBinding(module);
-      moduleLoadList.push(`Internal Binding ${module}`);
+      ArrayPrototypePush(moduleLoadList, `Internal Binding ${module}`);
     }
     return mod;
   };
@@ -163,12 +166,14 @@ class NativeModule {
    * A map from the module IDs to the module instances.
    * @type {Map<string, NativeModule>}
   */
-  static map = new Map(moduleIds.map((id) => [id, new NativeModule(id)]));
+  static map = new SafeMap(
+    ArrayPrototypeMap(moduleIds, (id) => [id, new NativeModule(id)])
+  );
 
   constructor(id) {
     this.filename = `${id}.js`;
     this.id = id;
-    this.canBeRequiredByUsers = !id.startsWith('internal/');
+    this.canBeRequiredByUsers = !StringPrototypeStartsWith(id, 'internal/');
 
     // The CJS exports object of the module.
     this.exports = {};
@@ -221,7 +226,7 @@ class NativeModule {
     if (!this.exportKeys) {
       // When using --expose-internals, we do not want to reflect the named
       // exports from core modules as this can trigger unnecessary getters.
-      const internal = this.id.startsWith('internal/');
+      const internal = StringPrototypeStartsWith(this.id, 'internal/');
       this.exportKeys = internal ? [] : ObjectKeys(this.exports);
     }
     this.getESMFacade();
@@ -271,7 +276,7 @@ class NativeModule {
     this.loading = true;
 
     try {
-      const requireFn = this.id.startsWith('internal/deps/') ?
+      const requireFn = StringPrototypeStartsWith(this.id, 'internal/deps/') ?
         requireWithFallbackInDeps : nativeModuleRequire;
 
       const fn = compileFunction(id);
@@ -282,7 +287,7 @@ class NativeModule {
       this.loading = false;
     }
 
-    moduleLoadList.push(`NativeModule ${id}`);
+    ArrayPrototypePush(moduleLoadList, `NativeModule ${id}`);
     return this.exports;
   }
 }
diff --git a/lib/internal/bootstrap/node.js b/lib/internal/bootstrap/node.js
index 6d6ca2af629c41..2705f8b50a658d 100644
--- a/lib/internal/bootstrap/node.js
+++ b/lib/internal/bootstrap/node.js
@@ -39,6 +39,7 @@
 setupPrepareStackTrace();
 
 const {
+  FunctionPrototypeCall,
   JSONParse,
   ObjectDefineProperty,
   ObjectGetPrototypeOf,
@@ -271,7 +272,7 @@ function setupProcessObject() {
   const EventEmitter = require('events');
   const origProcProto = ObjectGetPrototypeOf(process);
   ObjectSetPrototypeOf(origProcProto, EventEmitter.prototype);
-  EventEmitter.call(process);
+  FunctionPrototypeCall(EventEmitter, process);
   ObjectDefineProperty(process, SymbolToStringTag, {
     enumerable: false,
     writable: true,
diff --git a/lib/internal/bootstrap/pre_execution.js b/lib/internal/bootstrap/pre_execution.js
index 9689e2a9edf695..c76add4621b614 100644
--- a/lib/internal/bootstrap/pre_execution.js
+++ b/lib/internal/bootstrap/pre_execution.js
@@ -1,10 +1,11 @@
 'use strict';
 
 const {
-  Map,
   NumberParseInt,
   ObjectDefineProperty,
+  SafeMap,
   SafeWeakMap,
+  StringPrototypeStartsWith,
 } = primordials;
 
 const {
@@ -90,7 +91,8 @@ function patchProcessObject(expandArgv1) {
   });
   process.argv[0] = process.execPath;
 
-  if (expandArgv1 && process.argv[1] && !process.argv[1].startsWith('-')) {
+  if (expandArgv1 && process.argv[1] &&
+      !StringPrototypeStartsWith(process.argv[1], '-')) {
     // Expand process.argv[1] into a full path.
     const path = require('path');
     try {
@@ -351,7 +353,7 @@ function initializePolicy() {
   if (experimentalPolicy) {
     process.emitWarning('Policies are experimental.',
                         'ExperimentalWarning');
-    const { pathToFileURL, URL } = require('url');
+    const { pathToFileURL, URL } = require('internal/url');
     // URL here as it is slightly different parsing
     // no bare specifiers for now
     let manifestURL;
@@ -368,7 +370,7 @@ function initializePolicy() {
     if (experimentalPolicyIntegrity) {
       const SRI = require('internal/policy/sri');
       const { createHash, timingSafeEqual } = require('crypto');
-      const realIntegrities = new Map();
+      const realIntegrities = new SafeMap();
       const integrityEntries = SRI.parse(experimentalPolicyIntegrity);
       let foundMatch = false;
       for (let i = 0; i < integrityEntries.length; i++) {