.MOV Media file help...

Good Day.

I am shooting my videos using a DSLR and it's Output file is (.Mov)

When i import it on HF its preview is a bit Laggy.

Is there any way i can correct this concern, or i just always convert my file into MPEG4 (which is a hassle)

I'm using a Nikon D3300 by the way.

Thanks Guys