Under heavy Load, my SQL Server database is executing queries really slowly. I have 96 GB of RAM and my CPU is high (100%) but my physical memory usage is at 9%. I looked at the SQL Server memory usage which is in the screenshots below.  I enabled Locked In Pages but it didn't seem to help. I'm wondering if there is anything I can do in SQL Server to utilize more memory.

* Version: SQL Server 2012 Web Edition SP3 (x64)
* OS: Windows Server 2012 R2 (x64)

*max server memory* is set to the default. It's a web garden for one site. My database is 2 GB. I thought SQL Server would use more memory under a heavy load with more RAM, scaling up for the number of users/queries.

[![enter image description here][1]][1]

[![enter image description here][2]][2]

  [1]: https://i.sstatic.net/YDyJ3.png
  [2]: https://i.sstatic.net/9H59n.png