1. There is an updated and streamlined KR2 now. I would try that in place of the old KR.
2. Most likely the culprit for long run times is the TYPE=UN covariance matrix, rather than degrees of freedom. Do you really need to estimate all covariances? With 9 variables that's only 36 but with 14 it goes up to 91! You don't have enough data to estimate that many parameters.
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