What is your operating system?
WIN 10 Pro 64 bit
AMD 2400G, RAM 16G, GTX 1660SUPER 6G-OC (factory tuning)
NVIDIA Driver see in topic
What is your Shotcut version (see Help > About Shotcut)? Is it 32-bit?
Shotcut version 20.10.31 portable ver (64 bit? May be)
Can you repeat the problem? If so, what are the steps?
(Please be specific and use the names as seen in Shotcut, preferably English. Include a screenshot or screen recording if you can. Also, you can attach logs from either View > Application Log or right-click a job and choose View Log.)
After installing the driver of the graphics card 457.09-desktop-win10-64bit-international-dch-whql noticed a strong slowdown in export performance. At the same time, the load of the 3D and codec of the graphics card disappeared. The main load remained on the CPU and significantly increased the export time - it began to exceed the real time of the video 2-3 times. I had to reinstall the driver of the 452.06-desktop-win10-64bit-international-dch-whql.
After such a pullback, export performance has recovered and video export time is now 1.5-2 times less than the real time of the video. During the export, a load of the 3D codec module appeared. Although the codec is strangely underloaded, 25% is used at best, although the 3D module is sometimes loaded by more than 90%.
But if it works, let it work in this way. However, incompatibility with a fresh driver is a bit intimidating.
There are also other observations on export and work menu options, but this is later.