Saurabh I don't see value towards the SaaS for this niche. That is why I was against it from the start and it is not to discourage you from making something better.
TBH I use foodomaa only for a single restaurant and it is one of the best scripts I have owned. I do see there are 100s of things that can be added to the script to make it much better.
I believe you consider switching to SaaS and so that development of the script will be supported. The same can be done in an alternative way.
Next time before replying harsh, read the reply in a constructive way as I am your customer and I want you to be succeeded and so I get succeeded too.
Note: I really don't know whether the above reply is still harsh, apologize for such a situation.