diff --git a/.config/docker_example.yml b/.config/docker_example.yml
index d347882d1a91..985ba989c4bc 100644
--- a/.config/docker_example.yml
+++ b/.config/docker_example.yml
@@ -164,8 +164,8 @@ id: 'aidx'
 #clusterLimit: 1
 
 # Job concurrency per worker
-# deliverJobConcurrency: 128
-# inboxJobConcurrency: 16
+# deliverJobConcurrency: 16
+# inboxJobConcurrency: 4
 
 # Job rate limiter
 # deliverJobPerSec: 128
diff --git a/.config/example.yml b/.config/example.yml
index b11cbd137328..54f21aa0f9c0 100644
--- a/.config/example.yml
+++ b/.config/example.yml
@@ -230,14 +230,14 @@ id: 'aidx'
 #clusterLimit: 1
 
 # Job concurrency per worker
-#deliverJobConcurrency: 128
-#inboxJobConcurrency: 16
+#deliverJobConcurrency: 16
+#inboxJobConcurrency: 4
 #relationshipJobConcurrency: 16
 # What's relationshipJob?:
 #  Follow, unfollow, block and unblock(ings) while following-imports, etc. or account migrations.
 
 # Job rate limiter
-#deliverJobPerSec: 128
+#deliverJobPerSec: 1024
 #inboxJobPerSec: 32
 #relationshipJobPerSec: 64
 
diff --git a/.devcontainer/devcontainer.yml b/.devcontainer/devcontainer.yml
index beefcfd0a2d5..42c81588d613 100644
--- a/.devcontainer/devcontainer.yml
+++ b/.devcontainer/devcontainer.yml
@@ -157,11 +157,11 @@ id: 'aidx'
 #clusterLimit: 1
 
 # Job concurrency per worker
-# deliverJobConcurrency: 128
-# inboxJobConcurrency: 16
+# deliverJobConcurrency: 16
+# inboxJobConcurrency: 4
 
 # Job rate limiter
-# deliverJobPerSec: 128
+# deliverJobPerSec: 1024
 # inboxJobPerSec: 32
 
 # Job attempts
diff --git a/chart/files/default.yml b/chart/files/default.yml
index f98b8ebfee04..76062380489f 100644
--- a/chart/files/default.yml
+++ b/chart/files/default.yml
@@ -178,11 +178,11 @@ id: "aidx"
 #clusterLimit: 1
 
 # Job concurrency per worker
-# deliverJobConcurrency: 128
-# inboxJobConcurrency: 16
+# deliverJobConcurrency: 16
+# inboxJobConcurrency: 4
 
 # Job rate limiter
-# deliverJobPerSec: 128
+# deliverJobPerSec: 1024
 # inboxJobPerSec: 32
 
 # Job attempts
diff --git a/packages/backend/src/core/HttpRequestService.ts b/packages/backend/src/core/HttpRequestService.ts
index 7f3cac7c5807..4249c158d7cc 100644
--- a/packages/backend/src/core/HttpRequestService.ts
+++ b/packages/backend/src/core/HttpRequestService.ts
@@ -70,7 +70,7 @@ export class HttpRequestService {
 			localAddress: config.outgoingAddress,
 		});
 
-		const maxSockets = Math.max(256, config.deliverJobConcurrency ?? 128);
+		const maxSockets = Math.max(256, config.deliverJobConcurrency ?? 16);
 
 		this.httpAgent = config.proxy
 			? new HttpProxyAgent({
diff --git a/packages/backend/src/queue/QueueProcessorService.ts b/packages/backend/src/queue/QueueProcessorService.ts
index 7bd74f3210f8..df56391e9e12 100644
--- a/packages/backend/src/queue/QueueProcessorService.ts
+++ b/packages/backend/src/queue/QueueProcessorService.ts
@@ -250,9 +250,9 @@ export class QueueProcessorService implements OnApplicationShutdown {
 			}, {
 				...baseQueueOptions(this.config, QUEUE.DELIVER),
 				autorun: false,
-				concurrency: this.config.deliverJobConcurrency ?? 128,
+				concurrency: this.config.deliverJobConcurrency ?? 16,
 				limiter: {
-					max: this.config.deliverJobPerSec ?? 128,
+					max: this.config.deliverJobPerSec ?? 1024,
 					duration: 1000,
 				},
 				settings: {
@@ -290,7 +290,7 @@ export class QueueProcessorService implements OnApplicationShutdown {
 			}, {
 				...baseQueueOptions(this.config, QUEUE.INBOX),
 				autorun: false,
-				concurrency: this.config.inboxJobConcurrency ?? 16,
+				concurrency: this.config.inboxJobConcurrency ?? 4,
 				limiter: {
 					max: this.config.inboxJobPerSec ?? 32,
 					duration: 1000,