diff --git a/build/package/nfpm/config/dfget.yaml b/build/package/nfpm/config/dfget.yaml
index 048ab360b..6277d2bab 100644
--- a/build/package/nfpm/config/dfget.yaml
+++ b/build/package/nfpm/config/dfget.yaml
@@ -45,9 +45,9 @@ host:
 # download service option
 download:
   # total download limit per second
-  totalRateLimit: 200Mi
+  totalRateLimit: 1024Mi
   # per peer task download limit per second
-  perPeerRateLimit: 20Mi
+  perPeerRateLimit: 512Mi
   # download grpc option
   downloadGRPC:
     # security option
@@ -79,7 +79,7 @@ download:
 # upload service option
 upload:
   # upload limit per second
-  rateLimit: 200Mi
+  rateLimit: 1024Mi
   security:
     insecure: true
     cacert: ""
diff --git a/client/config/constants.go b/client/config/constants.go
index 5e3494d31..a5f5b128a 100644
--- a/client/config/constants.go
+++ b/client/config/constants.go
@@ -47,9 +47,9 @@ const (
 
 // Download limit.
 const (
-	DefaultPerPeerDownloadLimit = 20 * unit.MB
-	DefaultTotalDownloadLimit   = 100 * unit.MB
-	DefaultUploadLimit          = 100 * unit.MB
+	DefaultPerPeerDownloadLimit = 512 * unit.MB
+	DefaultTotalDownloadLimit   = 1024 * unit.MB
+	DefaultUploadLimit          = 1024 * unit.MB
 	DefaultMinRate              = 20 * unit.MB
 )
 
diff --git a/client/config/peerhost_test.go b/client/config/peerhost_test.go
index 4bbc0836c..0790863fb 100644
--- a/client/config/peerhost_test.go
+++ b/client/config/peerhost_test.go
@@ -294,10 +294,10 @@ func TestPeerHostOption_Load(t *testing.T) {
 		Download: DownloadOption{
 			DefaultPattern: PatternP2P,
 			TotalRateLimit: util.RateLimit{
-				Limit: 209715200,
+				Limit: 1024 * 1024 * 1024,
 			},
 			PerPeerRateLimit: util.RateLimit{
-				Limit: 20971520,
+				Limit: 512 * 1024 * 1024,
 			},
 			PieceDownloadTimeout: 30 * time.Second,
 			DownloadGRPC: ListenOption{
@@ -357,7 +357,7 @@ func TestPeerHostOption_Load(t *testing.T) {
 		},
 		Upload: UploadOption{
 			RateLimit: util.RateLimit{
-				Limit: 104857600,
+				Limit: 1024 * 1024 * 1024,
 			},
 			ListenOption: ListenOption{
 				Security: SecurityOption{
diff --git a/client/config/testdata/config/daemon.yaml b/client/config/testdata/config/daemon.yaml
index 3bbd7bc09..4097a0577 100644
--- a/client/config/testdata/config/daemon.yaml
+++ b/client/config/testdata/config/daemon.yaml
@@ -43,8 +43,8 @@ download:
   calculateDigest: true
   defaultPattern: p2p
   pieceDownloadTimeout: 30s
-  totalRateLimit: 200Mi
-  perPeerRateLimit: 20Mi
+  totalRateLimit: 1024Mi
+  perPeerRateLimit: 512Mi
   downloadGRPC:
     security:
       insecure: true
@@ -85,7 +85,7 @@ download:
     maxBackoff: 1
     maxAttempts: 1
 upload:
-  rateLimit: 100Mi
+  rateLimit: 1024Mi
   security:
     insecure: true
     caCert: ./testdata/certs/ca.crt
diff --git a/deploy/docker-compose/template/dfget.template.yaml b/deploy/docker-compose/template/dfget.template.yaml
index 293708955..442382ef0 100644
--- a/deploy/docker-compose/template/dfget.template.yaml
+++ b/deploy/docker-compose/template/dfget.template.yaml
@@ -94,9 +94,9 @@ download:
   # calculate digest when transfer files, set false to save memory
   calculateDigest: true
   # total download limit per second
-  totalRateLimit: 200Mi
+  totalRateLimit: 1024Mi
   # per peer task download limit per second
-  perPeerRateLimit: 100Mi
+  perPeerRateLimit: 512Mi
   # download piece timeout
   pieceDownloadTimeout: 30s
   # golang transport option
@@ -152,7 +152,7 @@ download:
 # upload service option
 upload:
   # upload limit per second
-  rateLimit: 100Mi
+  rateLimit: 1024Mi
   security:
     insecure: true
     cacert: ""
diff --git a/test/testdata/k8s/proxy.yaml b/test/testdata/k8s/proxy.yaml
index 154813078..26496cc90 100644
--- a/test/testdata/k8s/proxy.yaml
+++ b/test/testdata/k8s/proxy.yaml
@@ -39,14 +39,14 @@ data:
         tcpListen:
           listen: 0.0.0.0
           port: 65000
-      perPeerRateLimit: 100Mi
-      totalRateLimit: 200Mi
+      perPeerRateLimit: 512Mi
+      totalRateLimit: 1024Mi
       concurrent:
         thresholdSize: 10M
         thresholdSpeed: 2M
         goroutineCount: 4
     upload:
-      rateLimit: 100Mi
+      rateLimit: 1024Mi
       security:
         insecure: true
       tcpListen: