Look this one: aage is aged (https://forums.atariage.com/topic/387561-wings-of-death-st-vs-ste/)
At atarimania can see some details: amania is not aged (https://www.atarimania.com/game-atari-st-wings-of-death_33564.html)
Anyone said: devil is in details ?
From my own experience: using STE DMA audio instead PSG (partially) digitized sound may improve graphic frame rate little. But it depends from other things too - how video displaying code is done.
Well, usual advice is: believe own eyes instead what you can read on Internet. Or it was same some 30-40 years ago, except instead 'Internet' it was TV or press :-)