Heres some data from myself doing some F2P fishing and various other things on my computer for a while
I didnt filter out when I was holding down the mouse and dragging something, but they would likely be in the upper extremes of well above 400 ms
Data in ms
88,82,102,157,76,103,100,90,82,93,66,120,104,113,104,73,74,122,64,470,165,94,71,76,78,69,62,67,92,80,94,137,190,224,78,84,87,80,99,54,66,92,84,68,86,90,348,94,94,70,80,70,82,95,90,52,71,79,78,87,72,73,68,62,78,82,103,92,105,84,86,93,70,175,90,3587,76,86,73,80,70,86,88,219,109,64,60,77,91,105,94,85,89,108,133,151,77,96,86,74,147,78,100,88,79,78,72,83,64,101,78,83,104,64,92,94,106,101,96,98,62,81,104,75,104,90,109,110,60,149,68,96,118,135,94,92,109,114,96,101,86,100,78,91,96,58,78,82,91,131,102,115,70,93,89,85,109,93,116,145,110,99,158,770,98,105,96,257,185,166,177,99,87,96,109,155,105,201,81,90,90,95,106,123,489,117,132,116,115,104,98,104,80,90,88,95,106,115,89,97,101,83,112,112,68,195,109,80,86,112,161,100,93,78,127,107,88,137,117,121,102,74,108,101,81,88,59,81,106,90,88,147,117,76,116,90,96,103,74,77,96,80,96,93,111,103,96,80,118,99,75,103,101,84,106,83,71,86,74,81,95,82,86,95,89,87,92,94,93,91,101,94,117,100,121,102,92,95,308,69,103,86,76,267,99,86,566,56,104,806,76,94,111,89,183,121,64,112,91,95,104,100,118,90,99,102,100,70,68,123,106,100,72,1708,95,123,72,324,1768,93,91,124,107,117,101,108,107,80,161,91,101,126,96,98,93,103,99,90,78,83,97,113,126,109,151,157,128,113,132,96,95,105,78,87,79,80,103,3702,76,2351,741,694,63,84,95,103,104,83,108,92,86,71,115,87,96,92,115,101,113,110,94,52,94,593,85,71,124,94,76,85,112,84,114,84,86,111,113,86,93,96,107,108,107,102,74,105,74,80,122,109,100,88,263,328,132,99,96,100,97,106,76,92,133,118,132,120,134,133,126,109,110,111,139,93,94,99,104,120,105,102,87,112,81,103,94,59,102,121,98,102,92,66,97,98,79,91,95,125,119,112,118,83,96,3737,86,131,99,107,89,88,69,88,104,94,101,850,105,95,126,109,72,96,567,100,119,80,107,713,75,126,808,106,96,82,117,86,74,91,99,98,1064,88,352,71,102,5044,112,121,105,98,1597,77,100,362,129,144,123,108,111,96,92,123,125,394,98,852,112,92,907,104,95,86,102,65,74,74,87,434,71,101,70,105,219,139,75,100,85,75,105,82,70,746,1218,548,60,93,485,616,1190,86,446,100,1155,78,80,56,86,1384,93,692,86,618,68,364,608,54,90,76,644,110,3212,74,109,74,79,84,68,136,90,72,64,127,140,111,94,118,85,134,118,653,410,3361,91,100,130,106,98,3698,112,98,79,78,81,87,77,64,106,90,118,110,78,106,86,106,76,92,88,94,94,114,94,90,114,93,88,96,124,133,146,222,148,110,118,122,96,82,80,106,102,151,109,118,122,226,220,128,112,117,127,138,84,142,102,98,101,78,122,874,340,358,1094,70,1690,95,114,100,84,1154,90,90,110,110,5964,109,500,94,3048,68,2586,88,108,80,74,84,104,86,140,147,110,96,62,150,122,5178,3753,104,117,84,100,96,94,90,100,74,196,71,84,108,78,86,124,550,602,74,846,1052,282,830,108,624,136,86,394,82,86,395,110,88,104,114,92,310,116,76,94,72,236,152,80,112,94,87,100,98,98,96,98,92,88,106,84,80,86,90,104,88,90,86,80,252,104,106,110,96,90,292,120,86,78,84,260,82,100,144,98,256,92,86,92,190,90,98,78,128,72,76,384,114,74,100,98,98,104,78,78,224,126,114,102,116,122,88,82,55,500,116,110,92,518,82,234,146,330,208,355,114,90,99,110,94,398,144,138,90,134,64,114,104,146,132,144,148,94,604,62,84,172,90,134,96,110,102,112,132,140,108,98,86,312,92,80,402,66,82,80,76,90,356,92,92,110,90,114,118,90,88,78,98,84,104,88,110,122,108,112,1788,94,130,108,88,120,98,206,76,82,214,108,88,86,106,320,88,68,90,208,96,102,110,106,106,122,202,220,298,210,128,224,192,218,204,114,106,188,194,226,62,86,86,58,184,112,88,126,86,96,132,158,90,86,82,64,86,318,100,78,196,28,76,88,80,154,88,102,444,126,86,110,64,74,92,88,112,88,86,76,678,88,84,76,102,3015,108,82,66,76,74,94,84,88,96,74,92,74,86,1992,92,96,2076,88,104,98,128,84,66,98,86,110,120,118,102,106,110,120,104,126,64,76,98,74,102,90,64,84,62,70,68,116,96,74,80,690,100,70,98,96,58,66,86,56,112,124,62,90,80,104,64,106,496,92,88,98,88,118,94,96,60,98,78,84,96,106,102,100,96,102,78,92,76,72,110,92,86,114,96,100,126,78,98,80,218,160,136,180,264,116,96,192,90,214,112,142,76,122,114,114,132,224,340,98,104,110,138,50
Graph for reference