n7100: questions about firmware upgrade, dalvik cache, cache partition...
 

hey brothers:
sorry for typing with english but my laptop doesn't have arabic letters. i have samsung galaxy note 2 that i have updated it last week to the latest official software update by using samsung kies(supporting the multitasking feature). the device runs fine but i noticed that it is slightly slower than before espicially during gaming and moving through the desktops. the question is: what should i do? i have re-updated it again. and what about wiping the dalvik cache and cache partition? i heard that this might solve this issue. it is important to mention that my device is not rooted.
many thanks