Due to sample-based architecture applying a complex filter to a large texture can often take hours. In Filter Forge 5 we managed to tweak cache settings without actually modifying the rendering engine (which could possibly break many filters). The impact depends on the filter structure and settings and varies greatly from filter to filter, but it yielded visible performance improvement for quite a number of filters. Here is the rendering speed comparison for popular filters:
| Filter | Speed increase |
 Sketchy Painting |
55% |
 Watercolor Painting |
21% |
 Polygon Painting |
56% |
 Mess Painter |
73% |
 Fire and Smoke Particles
| 47% |
 Floor Metal Plate 01
| 22% |
