The first one converting from Deadlock is using Deadlock's hipfire FOV (60 vdeg) as the base for the zoom calculations.
The second one is using CS2's hipfire FOV (90 Hdeg 4:3, about 73.74 vdeg), so since the source is different, the calculations will also be different.
You should use the calculations for the game you are coming from.
You can avoid this by also using MDH 100% on hipfire btw, when the aims will be the same even if you reverse the calculation.