That's an unusual amount of DSE. Does it bother you when you are viewing your normal content at your normal viewing distance? If so return or exchange that thing while you still can . Keep in mind, though, that you'll never get a perfect panel, and your next could be worse. It's a "panel lottery." I have two 55Q90Ts that are much cleaner vis-a-vis DSE, although they have dead pixels, which infuriates me. I've gone through 9 Samsung panels in 2020. Honestly, I would pay Samsung $500 more than the cost of the panel if they could gaurantee minimal DSE and no dead pixels; it's such a horrendous waste of time.
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