Kick and hat don’t usually overlap, so this to me signals a few possibilities: First - the quality of the samples you use - you can work around this by applying a highpass filter on the hat and maybe a gentle lowpass on the kick. If you’re playing both at full volume then it might be that you’re using up the mix headroom - try bringing both down a bit, or the kick at least. It could also be that the master compressor needs setting up to work with your material (fn+lfo).
That said, my Digitakt patterns are all over the place - I end up recording them and re-EQ-ing them, often the bass is too much. But I don’t want pristine.