Massimo mentions here<https://groups.google.com/d/msg/web2py/MaL-nJFcKDc/R-JZ5DQOIzkJ>that one optimization tip is to remove "remove un-necessary {{...}} from the layout". Can someone speak to this- is there a real performance hit to doing
<ul> <li>{{=var1}}</li> <li>{{=var2}}</li> <li>{{=var3}}</li> </ul> versus this {{=UL( LI(var1), LI(var2), LI(var3) )}}