Yes, and no layer acceleration either:
Slower in fact than Firefox ESR.
Mozilla oddly removed all real acceleration on XP after something like Firefox 28. Palemoon should at least be on par with Firefox in layer acceleration, no? Not complaining or anything (I've never switched to Palemoon for this reason alone. Heck, I could really use the 64-bit advantage of it.
Either way, I'll be forced to switch after Mozilla ends ESR for XP.