Slow Visualization Loading and Error "Can't Display the Visual"

I'm connected to an SSAS Tabular model with 64-bit Power BI. In both Power BI desktop and published report, my more complicated visuals with 7 values or so (measurements from the tabular cube) are taking up to 15 seconds to load, or sometimes not loading at all and giving the following error: "Can't display the visual. See details." and

"Error Message:

The operation has been cancelled because there is not enough memory available for the application. If using a 32-bit version of the product, consider upgrading to the 64-bit version or increasing the amount of memory available on the machine.

Stack Trace:

Invocation Stack Trace:

Activity ID
35eae6ff-86a3-8451-814b-e0b8f7ead12a

Time
Mon Aug 29 2016 10:25:01 GMT-0500 (Central Daylight Time)

Version
2.38.4491.282 (PBIDesktop)

Error Code
OperationCanceled

OData Error Message
Failed to execute the query."