The LG Optimus L9 is a superbly balanced smartphone. Unlike the lower-positioned L7, the various components complement each other very nicely. You shouldn't expect any miracles of course, but the hardware definitely meets the requirements for what the phone needs. Extra features such as NFC and the dual-band wireless chip add some nice extra options.
You do software updates to get the most from favourite programs right? Updating a motherboard BIOS can in a timely manner is also critical. The guide to Flashing a Motherboard BIOS spells out the often complicated steps in plain english. PCSTATS Tips