You need to configure the following to handle a large number of transactions.
Configure larger Kernel memory
Configure database connection pool
Configure Queue Processor
Configure clustering
Reduce the number of discrete steps in flow by using custom plugins
Enable JDO caching
Set correct logging level
Optimize TCP settings if you are using Windows OS
For information on how to deploy clustering, click here. For information on how to enable JDO caching, click here. For information on how to set correct logging level, click here.
If Adeptia Connect is installed on Windows operating system then you should optimize TCP settings to avoid port exhaustion. For more information, click here.