Parallelism Cost Threshold
The parallelism cost threshold is a setting that SQL Server uses to determine when to run a query using multiple threads. Setting it too low can cause the query optimizer to spend more time planning how to run queries using multiple threads, rather than running the query itself. Setting it too high threshold could cause SQL Server to only ever run queries in single threads, potentially causing slower performing queries.
Consider increasing the parallelism cost threshold.
Any suggestion from Aireforge should be thoroughly tested before being implemented into production.
VMWare recommend a setting of 50 | Architecting Microsoft SQL Server on VMware vSphere®
PureStorage recommend 15-20 for OLTP and default (5) for OLAP | Pure1 Support