FCP/FCPX in Mountain Lion work?

i installed dp1 when came out, found fcpx work extremely slow. simple task lag lot , freeze up. re-installed snow leopard because needed use fcpx (which runs fine under). i'm not sure if because of specific machine laggy or mountain lion. can speak if dp2 works better fcpx , fcp7? go mountain lion don't want lose fcp while doing

 

mountain lion developer preview. developers either use separate machine or separate boot partition unreleased versions of os x.

if need fcp keep working, should stick snow leopard or lion.

after all, if fcp works in ml dp2, break next dp.

 

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