Performance improvements to response and moved tests around

tests/performance/aiohttp/python.aiohttp.py

@@ -0,0 +1,13 @@
+from aiohttp import web
+
+async def handle(request):
+    name = request.match_info.get('name', "Anonymous")
+    text = "Hello, " + name
+    return web.Response(text=text)
+
+
+app = web.Application()
+app.router.add_get('/', handle)
+app.router.add_get('/{name}', handle)
+
+web.run_app(app)