In the attached, turn on Ortho, SelCrv, Move, pick a point to move from, then hold down shift to override the Ortho and move the mouse around a fair amount. Over here, the move starts lagging well behind the cursor. The same move with Ortho off is perfectly fine.
I usually do have GPU tessellation off, as curve / surface edge display fidelity is poor when zoomed in with it on (stuff just doesn’t line up at all). However GPU tessellation seems to make no difference over here with the laggy move + shift.