Add recommendations to installations instruction.

docs/source/install.rst

@@ -14,3 +14,31 @@ From sources
         $ git clone https://github.com/aiogram/aiogram.git
         $ cd aiogram
         $ python setup.py install
+
+
+Recommendations
+---------------
+You can speedup your bots by following next instructions:
+
+- Use `uvloop <https://github.com/MagicStack/uvloop>`_ instead of default asyncio loop.
+
+    *uvloop* is a fast, drop-in replacement of the built-in asyncio event loop. uvloop is implemented in Cython and uses libuv under the hood.
+
+    **Installation:**
+
+        .. code-block:: bash
+
+            $ pip install uvloop
+
+
+- Use `ujson <https://github.com/esnme/ultrajson>`_ instead of default json module.
+
+    *UltraJSON* is an ultra fast JSON encoder and decoder written in pure C with bindings for Python 2.5+ and 3.
+
+    **Installation:**
+
+        .. code-block:: bash
+
+            $ pip install ujson
+
+In addition, you don't need do nothing, *aiogram* is automatically starts using that if is found in your environment.