diff --git a/src/stream-tcp-reassemble.c b/src/stream-tcp-reassemble.c
index bd5c9029fc..b61748dd10 100644
--- a/src/stream-tcp-reassemble.c
+++ b/src/stream-tcp-reassemble.c
@@ -2572,6 +2572,42 @@ static inline int DoReassemble(ThreadVars *tv, TcpReassemblyThreadCtx *ra_ctx,
                  TcpSession *ssn, TcpStream *stream, TcpSegment *seg, ReassembleData *rd,
                  Packet *p)
 {
+    /* fast path 1: segment is exactly what we need */
+    if (likely(rd->data_len == 0 && SEQ_EQ(seg->seq, rd->ra_base_seq+1) && SEQ_EQ(stream->last_ack, (seg->seq + seg->payload_len)))) {
+        /* process single segment directly */
+        AppLayerHandleTCPData(tv, ra_ctx, p, p->flow, ssn, stream,
+                seg->payload, seg->payload_len,
+                StreamGetAppLayerFlags(ssn, stream, p));
+        AppLayerProfilingStore(ra_ctx->app_tctx, p);
+        rd->data_sent += seg->payload_len;
+        rd->ra_base_seq += seg->payload_len;
+
+        /* if after the first data chunk we have no alproto yet,
+         * there is no point in continueing here. */
+        if (!StreamTcpIsSetStreamFlagAppProtoDetectionCompleted(stream)) {
+            SCLogDebug("no alproto after first data chunk");
+            return 0;
+        }
+        return 1;
+    /* fast path 2: segment acked completely, meets minimal size req for 0copy processing */
+    } else if (rd->data_len == 0 && SEQ_EQ(seg->seq, rd->ra_base_seq+1) && SEQ_GT(stream->last_ack, (seg->seq + seg->payload_len)) && seg->payload_len >= 128) {
+        /* process single segment directly */
+        AppLayerHandleTCPData(tv, ra_ctx, p, p->flow, ssn, stream,
+                seg->payload, seg->payload_len,
+                StreamGetAppLayerFlags(ssn, stream, p));
+        AppLayerProfilingStore(ra_ctx->app_tctx, p);
+        rd->data_sent += seg->payload_len;
+        rd->ra_base_seq += seg->payload_len;
+
+        /* if after the first data chunk we have no alproto yet,
+         * there is no point in continueing here. */
+        if (!StreamTcpIsSetStreamFlagAppProtoDetectionCompleted(stream)) {
+            SCLogDebug("no alproto after first data chunk");
+            return 0;
+        }
+        return 1;
+    }
+
     uint16_t payload_offset = 0;
     uint16_t payload_len = 0;