Ignore the quality score read the graphs
top graph < = 280 lower is better
bottom graph < = 16 lower is better
bottom jitter < = 15% closer to 8% is better.
A benq scan unlike kprobe on liteon is sum8/8 not 8/1 thats why the bottom graph is not read as < = 4. Like speed3 or kprobe liteon scans are. This scan is very good, you could not ask for any better.