diff --git a/frontend/src/ts/commandline/commandline-metadata.ts b/frontend/src/ts/commandline/commandline-metadata.ts
index a60cfa997..df0978c61 100644
--- a/frontend/src/ts/commandline/commandline-metadata.ts
+++ b/frontend/src/ts/commandline/commandline-metadata.ts
@@ -582,9 +582,6 @@ export const commandlineConfigMetadata: CommandlineConfigMetadataObject = {
   fontSize: {
     input: {
       inputValueConvert: Number,
-      validation: {
-        isValid: async (number: number) => number < 100,
-      },
     },
   },
   fontFamily: {
diff --git a/frontend/src/ts/elements/input-validation.ts b/frontend/src/ts/elements/input-validation.ts
index 665f98051..02ae9cfb8 100644
--- a/frontend/src/ts/elements/input-validation.ts
+++ b/frontend/src/ts/elements/input-validation.ts
@@ -42,7 +42,7 @@ export function debounceIfNeeded<T extends (...args: any[]) => any>(
   delay: number,
   callback: T
 ): T | debounce<T> {
-  if (delay === undefined || delay <= 0) {
+  if (delay <= 0) {
     return callback;
   }
   return debounce(delay, callback);
@@ -64,7 +64,7 @@ export function createInputEventHandler<T>(
   let callIsValid =
     validation.isValid !== undefined
       ? debounceIfNeeded(
-          validation.debounceDelay ?? 100,
+          validation.debounceDelay ?? 250,
           async (
             originalInput: HTMLInputElement,
             currentValue: string,
diff --git a/frontend/src/ts/pages/login.ts b/frontend/src/ts/pages/login.ts
index d073824d1..8aaede81e 100644
--- a/frontend/src/ts/pages/login.ts
+++ b/frontend/src/ts/pages/login.ts
@@ -105,7 +105,7 @@ validateWithIndicator(emailInputEl, {
     }
     return true;
   },
-  debounceDelay: 10,
+  debounceDelay: 0,
   callback: (result) => {
     if (result.status === "success") {
       //re-validate the verify email
@@ -123,7 +123,7 @@ validateWithIndicator(emailVerifyInputEl, {
       ? true
       : "verify email not matching email";
   },
-  debounceDelay: 10,
+  debounceDelay: 0,
   callback: (result) => {
     registerForm.email =
       result.status === "success" ? emailInputEl.value : undefined;
@@ -148,7 +148,7 @@ validateWithIndicator(passwordInputEl, {
     }
     return true;
   },
-  debounceDelay: 10,
+  debounceDelay: 0,
   callback: (result) => {
     if (result.status === "success") {
       //re-validate the verify password
@@ -166,7 +166,7 @@ validateWithIndicator(passwordVerifyInputEl, {
       ? true
       : "verify password not matching password";
   },
-  debounceDelay: 10,
+  debounceDelay: 0,
   callback: (result) => {
     registerForm.password =
       result.status === "success" ? passwordInputEl.value : undefined;