why is lighroom freezing

[keniaa64995880]

I just got a new computer wich is the latest Imac and I install my old and new presets however each time i want to scroll over specifics presets it freezes and it wont get off that i have to force quit the program to do so I cant figure out if the new presests are causing this or  its just coincidence that when i scroll down it frezzes always in that same area if I am fast enough and make it to scroll after those the program dont freeze.  If anybody has a guidance on this I will love any help nbc its getting very frustrating

[GoldingD]

Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut as that is just so much dead space to us non-Techs.