Surely play how you like, but the more serious fans of the genre will be serious about comparing scores and such. The lack of faithful reproduction of the original games breaks this aspect of the genre. Slowdown or lack thereof has a large impact on difficulty.
Not directing at you in particular, but was meaning to post something along these lines and this is as good a place as any.
Do serious fans even mix scores on different platforms? I can't imagine they would lump the 360/PCB/PC scores together. Just a question.
And as an aside. I've really been digging the original Darius game on the PSVR. Works extremely well...even having to turn your head slightly because the super wide image is so big. Lotsa fun and try it if you have the setup! Have not tried Burst on it yet.