Hello!
Of course new scaling engine may be disabled.
You saw this article? https://www.alphaskins.com/showdoc.php?l=en&n=2019
You can try the way №4 from this article and write about a results, please.
Also, will be very useful if you can describe issues rising when Delphi 2010 used with latest versions of the package. If it’s a problem of painting then some screenshots may help, I think.