I don't use a mouse to kad feed, actually it's all about key shortcuts for me
My method is the following, just have different tabs open of the shop wizard, with the 'Identical to my phrase' selected and the 'Search text' already clicked. The kad tab in the middle of them. Zoom out as much as you can but that you can still look at the clock. Now, refresh with the keyboard and as soon as kads refresh, select with touchpad, copy with keyboard, move of tabs with shortcuts, paste, search with enter, go to shop, buy, go back with shortcuts and feed. If you fail, you just move to another SW tab and repeat. Eventually you become faster with the shortcuts. The zooming out is important in case you get a shop filled with graphics so you avoid scrolling down.
So yeah, those are my tips for legit SW kad feeding.