Hi @Scott_P,
@Anonymous asked me to comment on your issue with Chrome64. When I initially started using PowerApps I was still using the connector to my MS Access WebApps tables through it's native Sql server and I had a great improvement in performance compared with regular Chrome. When WebApps were fully deprecated, I lost that connection and had to use SharePoint. I have since migrated to CDS and have had no problems with poor performance when using any web browser. I suspect that in the end, the problem was with changes being made to take down the WebApps server.
There was a comparison done between Chrome 32 and Chrome 64 ref: http://laptoplcdrepair.net/chrome-64-bit-vs-chrome-32-bit-performance-ram-consumption-and-security/
The conclusion of the article was to quote
"Chrome 64-bit topped Chrome 32-bit in every performance test. It ends up consuming much more memory, which is something to bear in mind if you run Chrome on low-end devices (4 GB or less), although it would not be a problem in current devices with 8-16 GB.
Stability is another element to take into consideration. According to Google, the 64-bit version is twice more stable than the 32-bit version, with the former showing half the errors of the latter in most web pages."
I hope that this addresses your issue. You may want to try a different browser than Chrome because it tends to be a memory hog and if you have limited memory on the device you are using, it may be a factor. In several tests, Opera used the least amount of RAM so you may want to try that one.
