It’s always best practice to keep your bot responsive and reply to the customer’s query as soon as possible.
The best way to do that is to keep the total number of blocks used in your bot to the as less as possible.
The limits of the total blocks
For every bot, you will be able to build your bot freely, but do keep in mind to keep the total blocks used within in 1000 blocks.
So what is blocks?
The bocks also mean the node you are using in the flow builder. For example, if you are sending message, or using question blocks, all these different node consider 1 block.
And if you are using action block, and you can have multiple actions in one action block, we still consider this 1 block.