diff --git a/.golangci.yml b/.golangci.yml
index 4133a1d..fb42693 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -5,6 +5,8 @@ linters:
     - govet
     - gci
     - staticcheck
+    - paralleltest
+    - ineffassign
 
 linters-settings:
   gci:
@@ -14,4 +16,9 @@ linters-settings:
       - prefix(github.com/sagernet/)
       - default
   staticcheck:
-    go: '1.20'
+    checks:
+      - all
+      - -SA1003
+
+run:
+  go: "1.23"
\ No newline at end of file
diff --git a/hysteria/packet.go b/hysteria/packet.go
index 54ee52c..e359615 100644
--- a/hysteria/packet.go
+++ b/hysteria/packet.go
@@ -20,7 +20,6 @@ import (
 	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
-	"github.com/sagernet/sing/common/rw"
 )
 
 var udpMessagePool = sync.Pool{
@@ -404,10 +403,12 @@ func decodeUDPMessage(message *udpMessage, data []byte) error {
 	if err != nil {
 		return err
 	}
-	message.host, err = rw.ReadString(reader, int(hostLen))
+	hostBytes := make([]byte, hostLen)
+	_, err = io.ReadFull(reader, hostBytes)
 	if err != nil {
 		return err
 	}
+	message.host = string(hostBytes)
 	err = binary.Read(reader, binary.BigEndian, &message.port)
 	if err != nil {
 		return err
diff --git a/hysteria/protocol.go b/hysteria/protocol.go
index c0243df..9174cc7 100644
--- a/hysteria/protocol.go
+++ b/hysteria/protocol.go
@@ -9,7 +9,6 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/rw"
 )
 
 const (
@@ -81,10 +80,12 @@ func ReadClientHello(reader io.Reader) (*ClientHello, error) {
 	if err != nil {
 		return nil, err
 	}
-	clientHello.Auth, err = rw.ReadString(reader, int(authLen))
+	authBytes := make([]byte, authLen)
+	_, err = io.ReadFull(reader, authBytes)
 	if err != nil {
 		return nil, err
 	}
+	clientHello.Auth = string(authBytes)
 	return &clientHello, nil
 }
 
diff --git a/hysteria2/internal/protocol/proxy.go b/hysteria2/internal/protocol/proxy.go
index f76265b..3b0c2f1 100644
--- a/hysteria2/internal/protocol/proxy.go
+++ b/hysteria2/internal/protocol/proxy.go
@@ -10,7 +10,6 @@ import (
 	"github.com/sagernet/sing/common"
 	"github.com/sagernet/sing/common/buf"
 	E "github.com/sagernet/sing/common/exceptions"
-	"github.com/sagernet/sing/common/rw"
 )
 
 const (
@@ -107,10 +106,12 @@ func ReadTCPResponse(r io.Reader) (ok bool, message string, err error) {
 	if messageLen > MaxMessageLength {
 		return false, "", E.New("invalid message length")
 	}
-	message, err = rw.ReadString(r, int(messageLen))
+	messageBytes := make([]byte, messageLen)
+	_, err = io.ReadFull(r, messageBytes)
 	if err != nil {
 		return
 	}
+	message = string(messageBytes)
 	paddingLen, err := quicvarint.Read(bReader)
 	if err != nil {
 		return
@@ -227,11 +228,12 @@ func ReadVString(reader io.Reader) (string, error) {
 	if length > MaxAddressLength {
 		return "", E.New("invalid address length")
 	}
-	value, err := rw.ReadBytes(reader, int(length))
+	stringBytes := make([]byte, length)
+	_, err = io.ReadFull(reader, stringBytes)
 	if err != nil {
 		return "", err
 	}
-	return string(value), nil
+	return string(stringBytes), nil
 }
 
 func WriteVString(writer io.Writer, value string) error {
@@ -239,7 +241,7 @@ func WriteVString(writer io.Writer, value string) error {
 	if err != nil {
 		return err
 	}
-	return rw.WriteString(writer, value)
+	return common.Error(writer.Write([]byte(value)))
 }
 
 func WriteUVariant(writer io.Writer, value uint64) error {