Beyond hardware changes and region clipping, there are a few options available in the preferences that users can set to optimize the performance according to their requirements. We access the Preferences through the Extras menu.

First, it may be worth using the "Run Auto-Detection" button to get a good starting point based on our recommendation.

This will set the caching based on the available amount of VRAM which is important if you are frequently visualizing time series in the 4D viewer. It will also set the Data Quality parameter, which is the amount of VRAM that will be used to display a single volume. The data quality scales from "Low" to "Ultra", but it is also possible to manually choose how much we want to use using the "Custom" option.

Note that the maximum will be dictated by the amount of VRAM available on the GPU.

A higher level of quality will generally result in finer details and fewer downscaling artifacts but will result in longer loading times and slower frame rates. Try increasing the quality by one rank and see if the performance remains acceptable for your personal use.

Note that displaying large numbers of segmented objects will add significantly to the GPU load, which combined with higher data quality can lead to very significant slow-downs.

Using the "Reduce down-scaling artifacts" option can improve image quality but takes longer to load.

Additional options are available that also have an effect on rendering speeds under the Render Settings tab. The details of these options can be found in the help files.