Hello! I’m also experiencing this issue (premium version), where the amount of information required on the form often runs into a timeout for users trying to submit the form. I’ve followed this thread, and particularly your note (@georgesupport) about the latest plugin update.
There was indeed a new release after your most recent post, v1.62. The changelog doesn’t mention anything about timeout. I have two sites using this plugin on v1.62, but we are still experiencing the timeout approximately 2 minutes and 30 seconds after the page loads.
Can you confirm the status of this bug fix? Please let me know if any additional information from me will be helpful in responding to this. Thanks!