рабочий вариант, но скороть 10 МБит

agents/rap-node-agent/internal/fabricproto/frame.go

@@ -11,8 +11,13 @@ const (
 	Magic   uint32 = 0x52415046 // RAPF
 	Version uint8  = 1
 
-	HeaderSize        = 32
-	DefaultMaxPayload = 1024 * 1024
+	HeaderSize = 32
+
+	// DefaultMaxPayload is a per-frame guardrail, not a throughput limit.
+	// Fabric services must scale by many QUIC streams and many frames; keeping
+	// this above common VPN/RDP/VNC burst batches avoids a hidden 1 MiB choke
+	// while still bounding memory for a single decoded frame.
+	DefaultMaxPayload = 8 * 1024 * 1024
 )
 
 type FrameType uint8