Make accesslogs.logTheRoundTrip async to get lost performance

docs/configuration/logs.md

@@ -124,6 +124,20 @@ filePath = "/path/to/access.log"
 format = "json"
 ```
 
+To write the logs in async, specify `bufferingSize` as the format (must be >0):
+```toml
+[accessLog]
+filePath = "/path/to/access.log"
+# Buffering Size
+#
+# Optional
+# Default: 0
+#
+# Number of access log lines to process in a buffered way.
+#
+bufferingSize = 100
+```
+
 To filter logs you can specify a set of filters which are logically "OR-connected". Thus, specifying multiple filters will keep more access logs than specifying only one:
 ```toml
 [accessLog]