There's no need to be rude. I more than got the point. Waveshare are selling different displays with different specs under the same product ID, and it's impossible to know exactly what you will get when you order this display under the waveshare name. I pointed out that the 0.3ms display in the file you linked is no longer available, so there is no use in trying to find it.
And also I notice that my supplier is marketing the old no longer available display in the product photo on their webpage, because it's got that printing on the flex cable, so if being picky I really didn't get what I ordered, I got a different version.
Apparently it's the Dalian Good Display company who are manufacturing these displays, and as I understand it, the display i have, DEPG0150BN/SSD1681, is also no longer available, other than to the extent suppliers still have it in stock. The 1.54" B/W display in production now seems to be the GDEY0154D67 which has 0.26 ms fast partial update time according to the specs.