Why does it take a long time to output 'faces. txt' when the Loopback option is not enabled,

[thisjam]

{ "00001.png": [], "00008.png": [], "00030.png": [], "00041.png": [], "00055.png": [], "00063.png": [], "00078.png": [], "00086.png": [], "00094.png": [], "00108.png": [], "00117.png": [], "00127.png": [], "00148.png": [], "00156.png": [], "00164.png": [], "00172.png": [], "00180.png": [], "00188.png": [], "00196.png": [], "00204.png": [], "00212.png": [], "00220.png": [], "00257.png": [], "00266.png": [], "00274.png": [], "00282.png": [], "00290.png": [], "00298.png": [], "00313.png": [], "00322.png": [], "00330.png": [], "00350.png": [], "00358.png": [], "00366.png": [], "00374.png": [], "00382.png": [], "00416.png": [], "00424.png": [], "00432.png": [], "00454.png": [], "00463.png": [], "00471.png": [], "00479.png": [], "00487.png": [], "00495.png": [], "00507.png": [], "00515.png": [], "00523.png": [], "00531.png": [], "00539.png": [], "00547.png": [], "00555.png": [], "00563.png": [], "00571.png": [], "00579.png": [], "00587.png": [], "00595.png": [], "00603.png": [], "00611.png": [], "00619.png": [], "00627.png": [], "00635.png": [], "00643.png": [], "00651.png": [], "00659.png": [], "00667.png": [], "00675.png": [], "00683.png": [], "00691.png": [], "00699.png": [], "00707.png": [], "00715.png": [], "00723.png": [], "00737.png": [], "00745.png": [], "00753.png": [], "00761.png": [], "00769.png": [], "00777.png": [], "00785.png": [], "00793.png": [], "00801.png": [], "00809.png": [], "00817.png": [], "00825.png": [], "00833.png": [], "00841.png": [], "00849.png": [], "00857.png": [], "00866.png": [], "00874.png": [], "00882.png": [], "00890.png": [], "00898.png": [], "00906.png": [], "00914.png": [], "00922.png": [], "00930.png": [], "00938.png": [], "00946.png": [], "00954.png": [], "00962.png": [], "00970.png": [], "00978.png": [], "00986.png": [], "00994.png": [], "01002.png": [], "01010.png": [], "01018.png": [], "01026.png": [], "01034.png": [], "01042.png": [], "01051.png": [], "01060.png": [], "01068.png": [], "01076.png": [], "01084.png": [], "01087.png": [] }