For the last 3 weeks I've been using the Vaxee XE-S mouse, upgrading/changing from my G Pro Superlight (v1) that I've used for the last 4 years and it's been such a great change. The XE-S is a little lighter (60g vs 63g on the GPX) but the shape is great, m1 and m2 are so responsive and the side buttons are significantly less mushy than the GPX.
I'm running it in 2k hz polling mode - it does offer 1k,2k and 4k as options but I found that 4k didn't feel noticeably different to 2k - but drained the battery a lot quicker. I found that 2k was a noticeable improvement over 1k for how responsive it felt.
At the same, I also picked up one of Artisan's orange Zero pads in Soft (XXL) to replace the Hayate Otsu I've used for the last 18 months. Honestly, Artisan pads are unbeatable. The feel of this pad moving the mouse across is so smooth, great for control when tracking in fps games, gives me enough speed and stopping power as well. Super happy with both currently!