same problem here..i get lag when i drive a jet

can someone help?
my game cant start
planetside2.exe has stopped working
problem details :
Problem signature:
Problem Event Name: APPCRASH
Application Name: PlanetSide2.exe
Application Version: 0.0.0.0
Application Timestamp: 50adc7c5
Fault Module Name: DINPUT8.dll
Fault Module Version: 6.2.9200.16384
Fault Module Timestamp: 5010a805
Exception Code: c0000005
Exception Offset: 0000ff7f
OS Version: 6.2.9200.2.0.0.256.48
Locale ID: 1033
Additional Information 1: 5861
Additional Information 2: 5861822e1919d7c014bbb064c64908b2
Additional Information 3: dac6
Additional Information 4: dac6c2650fa14dd558bd9f448e23afd1

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helpppp i had the beta before, i was able to play it before.