RAZER VIPER V2 PRO + RAZER STRIDER - Best Calibration? Low/High DPI?

Hello There!
Since I got the Razer Viper V2 Pro and totally felt in love with it, I was wondering what settings might be the best in case of DPI and Calibration to get maximum performance out of it.
Let's start with the DPI:
I actually used to play with X:700 Y:300 DPI for shooter - currently Hunt Showdown as maingame - since I saw a video which has shown that low DPI reduces the mouse movement delay. But after I was watching a more recent video the recommandation switched from Low DPI with 400 and 800 at best results in case of input lag into High DPI with the best results at 1600 and 3200 DPI.
Sooo.. What should I now go for? Currently I'm playing arround with testing X:1600 Y:700 but the problem is, eventhough you get your settings on a level which makes both playarts comfortable, the effect of input lag is nothing you really can feel. Has anyone a final conclussion whether I should go now for High DPI or should I stay with Low DPI with the Viper V2 Pro in particular?
The next topic I'm brainfogging about is calibration:
I'm using the RAZER Strider Mousepad but don't have any clue which calibration settings I should take.
Has anyone a best-build recommandation for the Viper V2 Pro in combination with the Strider?
Really don't know which Lift-Off and Landing-Distance would fit best.

Thanks to all of you, who leave their thoughts in the comment section below!