There are some factors to consider when deciding on whether to use Full or Delayed Durability. These include:
Data loss: If you can accept some data loss and the performance of the system is more important than the recoverability of certain transactions, then Delayed Durability could be an option for you.
Bottleneck on transaction log writes: After careful analysis of your system wait stats, you concluded that you are suffering from performance issues. This could be due to latency when writing to the transaction log, and you can accept some data loss in the event of a system crash or restart. In which case, Delayed Durability could be an option to solve this performance issue.
A high contention workload: If your wait stat analysis shows that your performance slowness is caused by the delay in locks being released, then Delayed Durability could be an option. It helps remove the contention as it reduces the commit time and as such locks will be released...
