Update documentation

docs/configuration/experimental/index.md

@@ -9,24 +9,39 @@
       "external_controller": "127.0.0.1:9090",
       "external_ui": "folder",
       "secret": "",
+      "direct_io": false,
       "default_mode": "rule",
       "store_selected": false,
       "cache_file": "cache.db"
+    },
+    "v2ray_api": {
+      "listen": "127.0.0.1:8080",
+      "stats": {
+        "enabled": true,
+        "direct_io": false,
+        "inbounds": [
+          "socks-in"
+        ],
+        "outbounds": [
+          "proxy",
+          "direct"
+        ]
+      }
     }
   }
 }
 ```
 
+!!! note ""
+
+    Traffic statistics and connection management can degrade performance.
+
 ### Clash API Fields
 
 !!! error ""
 
     Clash API is not included by default, see [Installation](/#installation).
 
-!!! note ""
-
-    Traffic statistics and connection management will disable TCP splice in linux and reduce performance, use at your own risk.
-
 #### external_controller
 
 RESTful web API listening address. Clash API will be disabled if empty.
@@ -43,6 +58,10 @@ Secret for the RESTful API (optional)
 Authenticate by spedifying HTTP header `Authorization: Bearer ${secret}`
 ALWAYS set a secret if RESTful API is listening on 0.0.0.0
 
+#### direct_io
+
+Allows lossless relays like splice without real-time traffic reporting.
+
 #### default_mode
 
 Default mode in clash, `rule` will be used if empty.
@@ -59,4 +78,34 @@ Store selected outbound for the `Selector` outbound in cache file.
 
 #### cache_file
 
-Cache file path, `cache.db` will be used if empty.
+Cache file path, `cache.db` will be used if empty.
+
+### V2Ray API Fields
+
+!!! error ""
+
+    V2Ray API is not included by default, see [Installation](/#installation).
+
+#### listen
+
+gRPC API listening address. V2Ray API will be disabled if empty.
+
+#### stats
+
+Traffic statistics service settings.
+
+#### stats.enabled
+
+Enable statistics service.
+
+#### stats.direct_io
+
+Allows lossless relays like splice without real-time traffic reporting.
+
+#### stats.inbounds
+
+Inbound list to count traffic.
+
+#### stats.outbounds
+
+Outbound list to count traffic.