We are sorry for the delay. We were working on similar ticket with the same issue from the other customer. It seems there is an issue with Avada and EventON.
Ashan’s message:
fusion = Avada theme, dashes and symbols mean encrypted data. It seems Avada is adding this post meta value to each event post from their font management. Perhaps misconfigured avada? may be try reaching out to them.
It might be google fonts hosted locally on your site causing it to store that font data as postmeta. Check in Avada settings for Google font awesome font mode?
I will share a code here to set up a cronjob to periodically clean up that heavy postmeta data. — here I also added code to stop avada from saving post meta when event is saved.
https://dev2.myeventon.com/codeshare/LulEpIAQXEiH
Could you try adding the code from the link to your website and check if it’ll fix the performance issue?
New version of Ticket is available. Please update and check the issue again.
We are sorry for the delay. Ashan will check this ASAP.
Hello,
Please send us FTP access to your site as a private message, so we can perform several tests from our end and resolve your issue fast!
I cannot access your website:

Just wondered if any update on this?
I had an update for EventOn but not for ActionUser…
Thanks!
We are working on the next version of EventON. Could you wait until it’s release while staying on 4.9.7?
We are sorry for the delay. Ashan will check this ASAP.
Hello,
The issue should be fixed by re-downloading the same EventON 4.9.9. We uploaded the fix to CodeCanyon. but the version is still the same.
Could you check and let me know? You can also wait until the next version.
No issues on my side as well:

Could you try manually clearing your browser cache?
We are glad your issue is resolved, if you have any further questions or concerns please create a new ticket.