Hi MartinBKK,
I think a lot of people are using NC packages, but I haven't heard of many users mentioning major performance issues.
Around how many hands are you using in your database?
Are you using the new NC setting to store images on a RAM drive? If not, definitely turn it on because I think it helps the popups load much more quickly.
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Also I should mention, which maybe you've already figured out, but the first time you open a popup for a particular player it will take longer for his/her stats to load. Then the subsequent times a popup is loaded for that player during a session it should load instantly. This is due to the caching method that is used in the HM3 NC.