Log Mean Squared Error with 1000 Steps DDIM (SciRE-V1-1, our codebase) as the Benchmark:

scire-v1-2:
6  NFE: 5.56
12 NFE: 5.20
24 NFE: 5.06
36 NFE: 5.05
50 NFE: 4.85
100 NFE：4.54 

scirei-2:
6  NFE: 5.62
12 NFE: 5.20
24 NFE: 5.33
36 NFE: 5.14
50 NFE: 4.93
100 NFE: 4.60

DPM-2:
6  NFE: 5.66
12 NFE: 5.45
24 NFE: 5.06
36 NFE: 4.60
50 NFE：4.16
100 NFE：3.04
