-The **ns-3 based model** is the most accurate network model in SimGrid. It relies on the well-known
-`ns-3 packet-level network simulator <http://www.nsnam.org>`_ to compute full timing information related to network
-transfers. This
-model is much slower than the LMM-based models. This is because ns-3 simulates the movement of every network packet involved in
-every communication, while the LMM-based models only recompute the respective instantaneous speeds of the currently ongoing
-communications when a communication starts or stops.
+The **ns-3 based model** is the most accurate network model in SimGrid. It relies on the well-known `ns-3 packet-level network
+simulator <http://www.nsnam.org>`_ to compute full timing information related to network transfers. This model is much slower
+than the LMM-based models. This is because ns-3 simulates the movement of every network packet involved in every communication,
+while the LMM-based models only recompute the respective instantaneous speeds of the currently ongoing communications when a
+communication starts or stops. In other terms, both SimGrid and ns-3 are fast and highly optimized, but while SimGrid only
+depends on application-level events (starting and stoping of communications), ns-3 depends on network-level events (sending a
+packet).