The performance of the GPU has not yet been fully utilized. Could you set an option specifically for using 48GB of video memory or larger? Currently, the video memory is only used up to about 55%.GPU的性能还未发挥出来，能否设置一个选项，专门针对48G显存或是更大的显存来使用，目前显存只用到55%左右。

This is a really great tool, but the performance of the GPU has not been fully utilized yet. Could you set an option specifically for using 48G of video memory or larger? Currently, only about 55% of the video memory is used, which is a bit of a pity
这是一个相当棒的工具，不过GPU的性能还未发挥出来，能否设置一个选项，专门针对48G显存或是更大的显存来使用，目前显存只用到55%左右，有点可惜

The issue does not identify files, tests, entry points, or the current memory-allocation behavior to inspect. Start by tracing how GPU memory is selected and used, then define a reproducible success criterion for 48GB-or-larger GPUs and validate the option against it.

Written by the indexing model from the issue text.