I went with your recomendations and even redownload the Lightroom again and it is better but not like before that use to be faster. before your instructions it would take about 35 seconds to go from one photo to another. Now it takes 5-8 second to go between images. I still think there is something wrong and I can't figure it out. I did happened when I download the update and since been acting slow.
Please let me know if there is anything else I can do to fix the speed.