Pulse has a good cooler and presume paste and pads etc, doubt you will need to repaste etc until a fair few years after you buy one. Imo.
Made a reasonable difference on my old Sapphire 270X's, and on my old Asus 390X Strix the difference was substantial.
Its not a difficult job to do so worst case is I've spent an hour or two doing it and the difference is minimal.

I haven't pushed it to it's limit yet (it was getting late - very late
) but it's running just slightly below your recommended speeds at the voltages you recommended, with RAM at 950 (it's Micron, btw). Thanks again for the help.
Div 2 is easy with 4k on vega 56 imo.