I like LXLE too.
If you are trying these from a CD or USB stick they will run slower than if they were installed on the Hard Drive.
You have discovered that a lightweight desktop with some heavyweight apps ceases to be lightweight.
Have a look at http://www.everydaylinuxuser.com/2013/10/12-great-linux-operating-systems-for.html (Crunchbang has ceased and gone two ways Bunsenlabs and Crunchbang++).
You could try installing a minimal LXDE. Look at https://www.maketecheasier.com/build-lightweight-linux-for-low-end-laptop/ . If you use lxde-core instead of lxde you get less unnecessary apps. Or, in Ubuntu https://l3net.wordpress.com/2014/12/30/lightweight-ubuntu-lxde-desktop-from-scratch/