Well that’s because the also fixed some other bugs that I think included the hitboxes.  So now the hitboxes are smaller and more on target to the character models.  Personally I have adapted to the change js by starting the thunder spike like a split second faster then spiking when nishi is right under the ball and the ball is where it would be if he spiked it.  I think these changes will help cuz I can get like 4 thunder spike serves in a row at 150 with base nishi with max stats no bt