Segun Rtings:

The Sony X90K is the successor to the Sony X90J, and it's not worth the upgrade if you already have the X90J or if you're deciding between the two TVs. The main difference is that the X90J has a better local dimming feature, resulting in less blooming around bright objects, meaning the overall picture quality is better on the X90J. However, if you're a gamer, the X90K is the better choice and has a wider 1080p VRR range.

Y ya hay comparativas que la XJ tiene mas blooming que la XH al tener mas brillo, por lo que bajarte de una 95 es arriesgarte al blooming.