How to enable hardware acceleration for h.264 video?

The use of Da Vinci clips in low-end computers is a headache. Video decoding is inefficient. How to enable video acceleration for h.264 encoded video?
Who can help me?
Davinci resolve 15.0b2,| windows pro 10 (1709) | cpu: i7-6700 | GPU: GTX 750 TI | RAM: DDR4 2400mhz 16G
Who can help me?

Davinci resolve 15.0b2,| windows pro 10 (1709) | cpu: i7-6700 | GPU: GTX 750 TI | RAM: DDR4 2400mhz 16G