diff --git a/packages/cli/src/cmds/validator/handler.ts b/packages/cli/src/cmds/validator/handler.ts
index 5365b304bd49..04635dbe1446 100644
--- a/packages/cli/src/cmds/validator/handler.ts
+++ b/packages/cli/src/cmds/validator/handler.ts
@@ -165,6 +165,7 @@ export async function validatorHandler(args: IValidatorCliArgs & GlobalArgs): Pr
       doppelgangerProtectionEnabled,
       afterBlockDelaySlotFraction: args.afterBlockDelaySlotFraction,
       scAfterBlockDelaySlotFraction: args.scAfterBlockDelaySlotFraction,
+      disableAttestationGrouping: args.disableAttestationGrouping,
       valProposerConfig,
     },
     metrics
diff --git a/packages/cli/src/cmds/validator/options.ts b/packages/cli/src/cmds/validator/options.ts
index 6462c320a578..1ad12b1ef0c5 100644
--- a/packages/cli/src/cmds/validator/options.ts
+++ b/packages/cli/src/cmds/validator/options.ts
@@ -36,6 +36,7 @@ export type IValidatorCliArgs = AccountValidatorArgs &
     graffiti: string;
     afterBlockDelaySlotFraction?: number;
     scAfterBlockDelaySlotFraction?: number;
+    disableAttestationGrouping?: boolean;
     suggestedFeeRecipient?: string;
     proposerSettingsFile?: string;
     strictFeeRecipientCheck?: boolean;
@@ -189,6 +190,14 @@ export const validatorOptions: CliCommandOptions<IValidatorCliArgs> = {
     type: "number",
   },
 
+  disableAttestationGrouping: {
+    hidden: true,
+    description:
+      "Disables attestation service grouping optimization, attestation tasks will be executed per committee instead of just once for all committees.",
+    default: false,
+    type: "boolean",
+  },
+
   proposerSettingsFile: {
     description:
       "A yaml file to specify detailed default and per validator pubkey customized proposer configs. PS: This feature and its format is in alpha and subject to change",
diff --git a/packages/validator/src/validator.ts b/packages/validator/src/validator.ts
index 7241c9397a2b..88d6033b5210 100644
--- a/packages/validator/src/validator.ts
+++ b/packages/validator/src/validator.ts
@@ -33,6 +33,7 @@ export type ValidatorOptions = {
   abortController: AbortController;
   afterBlockDelaySlotFraction?: number;
   scAfterBlockDelaySlotFraction?: number;
+  disableAttestationGrouping?: boolean;
   doppelgangerProtectionEnabled?: boolean;
   closed?: boolean;
   valProposerConfig?: ValidatorProposerConfig;
@@ -123,7 +124,10 @@ export class Validator {
       emitter,
       chainHeaderTracker,
       metrics,
-      {afterBlockDelaySlotFraction: opts.afterBlockDelaySlotFraction}
+      {
+        afterBlockDelaySlotFraction: opts.afterBlockDelaySlotFraction,
+        disableAttestationGrouping: opts.disableAttestationGrouping,
+      }
     );
 
     this.syncCommitteeService = new SyncCommitteeService(