Settings > Apps not showing up correct ram usage in CM10

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http://forum.xda-developers.com – Hi I have flashed CM10 recently with speedmod on my Note however I found CM10 with speedmod was quite laggy so I flashed another kernel HydraCore v3 instead the lag was gone, however i found that the ram usage is very high constantly and i couldn't see the ram usage of individual apps (thus unable to find out the cause of the memory problem) also, there's another thing since i have flashed CM10, i have noticed a crazy battery drain on my phone... it's alright when the screen is off...however if I use it for messaging/internet, the battery could drop by a few% within 10 minutes, an (HowTos)