In Lightroom, you can try the following
Go to Preferences, click on the Performance tab, then uncheck the box
If that doesn't help, then please be a lot more specific and provide details — when you say "light room cc which works but is alot slower then my light room 5", exactly what actions in Lightroom are slow?
It is recommended to have at least 8 GB of Ram to Run Photoshop, Lightroom and even Photoshop Elements Properly.
You should really consider upgrading your Ram(which you already have done).In the meantime refer Optimize performance Adobe Photoshop CC and see if it helps speeding up the Program a bit.
Similarly for Lightroom refer How to improve and speed up Photoshop Lightroom performance and Elements Tips to enhance Photoshop Elements performance
Let us know if that helps.
hi there thanks for the reply. what i mean by lightroom cc is slower then my light room 5 is.. when i use the sliders it takes a while to change the effects to the image and also when im importing to lightroom it takes a good 5 miutes and it is the same when exporting files from lightroom. On my light room 5 every thing was working fine and the importing and exporting didnt take 5 minutes.
many thanks ross
None of these sound to me like memory-related problems.
Try turning off the graphics processor, as I explained above.
Also please check to be sure you are using the most recent version of Lightroom CC, which is version 2015.4.