Phone lagging/ apps force closing

[iume]

Please forgive me if I missed this issue when I attempted a search.

My thunderbolt is not rooted and has not been modified beyond setting up stock widgets, skins, and market apps (task killer, myfitnesspal, pandora, speed test, quadrant score, and superbox). Applications (mainly pandora and myfitnesspal) constantly force closing.
Several times, the phone has failed to recognize my SD card without me pulling it out or turning the phone off, and I am forced to physically remove it and reinsert before I can access it. Also, the phone gets ridiculously laggy. For example, the keyboard is almost unresponsive at times and earlier it took a good 10-15 seconds between pressing the "Messages" application and the application actually showing up on my screen. Sometimes it happens after I haven't rebooted for a while, and sometimes it happens almost immediately after a reboot.

I saw these issues (except for the SD card problem) on my HTC Evo but assumed I screwed something up when I rooted it. I guess I'm just wondering if this is normal for HTC or Android devices.

Thanks

 

[cadzilla74]

Definitely not normal behavior. Get rid of the Task Killer. It is not needed with this OS and will actually cause problems. Uninstall it. Do a couple of clean restarts and see if things don't work better than they are now.

 

[JRZLocal]

If your phone doesnt recognize the sd card it sounds like it may be a hardware rather than software issue.

 

[cwescapexlt4x4]

If your phone doesnt recognize the sd card it sounds like it may be a hardware rather than software issue.

Yeah I would agree with that as well.