RGB images, not cached at server:

32
64
96
128
160
192
224
256
288
320
352
384
416
448
480
512

148.675
39.2887
26.0207
16.052
18.7543
14.8463
18.352
15.0523
16.0067
16.617
14.97
11.5297
14.6367
11.187
12.2923
10.6467

RGB images, cached at server:

216.625
43.771
23.855
17.64
14.111
11.692
10.987
9.39
9.437
9.619
8.387
6.892
7.958
7.189
6.892
6.144

LAB images, processing done in client, not cached at server:

105.079
30.4747
22.2377
14.57
23.1607
18.8607
21.7177
15.5063
17.031
19.5277
16.2353
13.7757
17.4377
15.2223
15.198
12.0207

LAB images, processing done in client, cached at server:

109.536
22.7333
14.8593
11.8273
14.0173
10.8813
14.7597
10.5323
11.9737
13.9593
11.8703
10.4397
13.062
11.6597
11.1237
10.1043