I make a lot of testing, trying to load pages several times and plugin memory usage is very high… almost 10mb. We develop a high traffic site, need low mem usage… if your plugin cant be fix this high memory usage I ask for a full refund please.
You can not make anything error free in this world completely. There are lot of user using this plugin but did not told us anything about speed issue. Please check in our forum discussion you will not get anything about speed issue.
I think you understand me. Please let me are you getting any other issues about installation, configuration etc. I am here to help you.