Hello centreamuza,
Thanks for reaching out to us!
We apologize for the inconvenience you are having with the performance of our plugins. We are actually currently working on our next release which is due to be released very shortly. This release comes after we’ve been focusing on performance as part of our Summer of Performance. This release should help to greatly increase the performance of the plugin on your site.
Until then (and possibly moving forward after the plugin update), it may be beneficial to look into switching hosting plans if your site is resource or database heavy with the use of the ecommerce and events systems together.
I’m sorry I wasn’t able to give you a direct response however I hope this was able to point you in the right direction.
Thanks!