Is it possible to increase the speed of findChessboardCorners

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Hello my name is David, I work on the detection of chessboard in real times with OPENCV. My algorithm is implemented on the ARM platforms on gumstix Duovero Crystal COM.

To detect the chessboard I use findChessboardCorners. "bool found = findChessboardCorners(cvImage, boardSize, pointBuf,CV_CALIB_CB_FAST_CHECK | CV_CALIB_CB_NORMALIZE_IMAGE);" if(bool){ My algorithm using solvePnp.... }

However this function (findChessboardCorners) is not fast enough for my application, When I move my camera the rvec and tvec change only after 3s. The same when there is no chessboard on the image, I have a warning CHESSBOARD NOT FOUND only each 3s.

Maybe have you got any suggestion for increase the speed of findChessboardCorners???