My -occasional- blurring/ghosting was corrected (eliminated) when hardware acceleration was enabled by changing to a Constant bitrate and slightly higher max bitrate; e.g.
Without HA enabled, I never saw the issue. I experimented with settings on the camera and BI and found that making these changes on the camera worked for me. (your mileage may vary)
Intel i9-9900k, native UHD 630 graphics, with driver 26.20.100.7755 (newer 26.20.100.7870 graphics driver out today, not yet updated)