If the game wasn't coded for it, it won't use it. Some people seem to think it's some magical update that magically smooths things out. It doesn't.
That, of course, as in the case of MSX2 running games designed specifically for the MSX1 (and similarly, SG1000 games in SMS). It's that MSX2 was massively popular that most games in the era had support for this system. The 2+ was just not as popular to motivate more people to code for it. Talking about unpopular, let's not mention the even more advanced 16-bit TURBO-R...
...who said PCE had no scrolling? lolwtf
By that I meant no hardware 2nd background plane for parallax scrolling obviously.
The "NO SCROLL" thing (I think) was actually a joke possibly most used in the forums
here some years back, probably many instances in the screenshot comparison thread, with joke comments like "The PCE version has more colours than the MD one.", "But the PCE has NO SCROLL!"
I was actually a lurker here for years, but stopped visiting for awhile since member registration became mandatory, thinking I wouldn't have anything interesting to post. It's until recently that I suddenly decide to check again so eventually I registered (this site was always in my bookmark).