Tweeking OS X 10.11 El Capitan for better performance

I've done the followings to remove unnecessary apps and services on OS X 10.11 El Capitan on my MBP 13", hoping to optimize the overall system performance.

• Uninstalled ZipCloud -- Never used this software at all.
• https://discussions.apple.com/thread/6605913
• Uninstalled Junos Pulse's startup service -- Not a frequent-used software, no need to run in background.
• https://discussions.apple.com/thread/6090340
• Disabled spindump -- One of the most useless pre-installed services on OS X history, according to some reports.
• http://jamesreubenknowles.com/disable-spindump-71
• http://www.real-world-systems.com/docs/spinDump.html
• Removed Spigot: 
• http://www.thesafemac.com/arg-spigot/
• Uninstall AliPayDispatcher & browser plug-in -- from time to time it eats up CPU like a hog.
• http://www.douban.com/group/topic/58081225/
• https://m.oschina.net/blog/343402
• https://gist.github.com/sparanoid-bot/4441965
• Google Chrome is a performance killer, too. However I still keep it only because browsing experience on it is quite nice.