Handwriting annotations and notations on Intel MS Surface are not good

A few months ago I bought the lastest MS Surface with a snapdragon processor. Handwritten annotation and notation work great on PDFs in Adobe Acrobat. Because of some incompatibilities with other enterprise systems on campus we invested in a MS Surface with an Intel processor. The problem is that in Adobe Acrobat the handrwritten annotation and notations are not good. The person using the device often has to write formulas and when writing an equal sign just gets two dots. Other handwriting is often illegible as compared to the snapdragon Surface. The issue only seems to be in Acrobat, not other programs like PowerPoint and Notes that exist on the computer. I've read a similar post that mentioned going to Preferences/General and changing Touch Mode from Auto-Detect to Always but that has not made the handwriting any more legible. Looking for other setting to look at (have already adjusted the sensitivity of the Surface Pen to the lightest intensity).