@@ -92,6 +92,8 @@ export interface NgLanguageService extends ts.LanguageService {
     refactorName: string,
     reportProgress: ApplyRefactoringProgressFn,
   ): ts.RefactorEditInfo | undefined;
+
+  hasCodeFixesForErrorCode(errorCode: number): boolean;
 }
 
 export function isNgLanguageService(
 
@@ -356,6 +356,17 @@ export class LanguageService {
     });
   }
 
+  /**
+   * Performance helper that can help make quick decisions for
+   * the VSCode language server to decide whether a code fix exists
+   * for the given error code.
+   *
+   * Related context: https://github.com/angular/vscode-ng-language-service/pull/2050#discussion_r1673079263
+   */
+  hasCodeFixesForErrorCode(errorCode: number): boolean {
+    return this.codeFixes.codeActionMetas.some((m) => m.errorCodes.includes(errorCode));
+  }
+
   getCodeFixesAtPosition(
     fileName: string,
     start: number,
@@ -367,6 +378,11 @@ export class LanguageService {
     return this.withCompilerAndPerfTracing<readonly ts.CodeFixAction[]>(
       PerfPhase.LsCodeFixes,
       (compiler) => {
+        // Fast exit if we know no code fix can exist for the given range/and error codes.
+        if (errorCodes.every((code) => !this.hasCodeFixesForErrorCode(code))) {
+          return [];
+        }
+
         const templateInfo = getTemplateInfoAtPosition(fileName, start, compiler);
         if (templateInfo === undefined) {
           return [];
 
@@ -350,6 +350,7 @@ export function create(info: ts.server.PluginCreateInfo): NgLanguageService {
     getSignatureHelpItems,
     getOutliningSpans,
     getTemplateLocationForComponent,
+    hasCodeFixesForErrorCode: ngLS.hasCodeFixesForErrorCode.bind(ngLS),
     getCodeFixesAtPosition,
     getCombinedCodeFix,
     getTypescriptLanguageService,
Original file line number	Diff line number	Diff line change
`@@ -92,6 +92,8 @@ export interface NgLanguageService extends ts.LanguageService {`
`92`	`92`	`refactorName: string,`
`93`	`93`	`reportProgress: ApplyRefactoringProgressFn,`
`94`	`94`	`): ts.RefactorEditInfo \| undefined;`
	`95`	`+`
	`96`	`+ hasCodeFixesForErrorCode(errorCode: number): boolean;`
`95`	`97`	`}`
`96`	`98`
`97`	`99`	`export function isNgLanguageService(`