The only time that you will get a noticeable increase in memory speed is when you go from single to dual channel, any other time you either have enough memory for the required use or you don`t, two 8GB sticks of matching DDR3 RAM is more than enough for most users and if the same average user increases the RAM to 48GB the speed of the RAM will be the exact same as that of the two matching 8GB sticks but 32GB of RAM will be left doing nothing as it will not get used.
Short version, unless you do CAD or professional video editing anything more than two 8GB sticks of RAM is a waste of cash.
Download then run Speccy (free) and post the resultant url for us, details here, this will provide us with information about your computer hardware + any software that you have installed that may explain the present issue/s.
To publish a Speccy profile to the Web:
- In Speccy, click File, and then click Publish Snapshot.
- In the Publish Snapshot dialog box, click Yes to enable Speccy to proceed.
- Speccy publishes the profile and displays a second Publish Snapshot. You can open the URL in your default browser, copy it to the clipboard, or close the dialog box.