Hello Gerry22,
Welcome to community! Your computer and browser must meet the system requirements for QuickBooks Online, to ensure a smooth transition from QuickBooks Desktop. Your internet speed along with your web and mobile browser may vary depending on your system. To review the system requirements, follow this link. In addition, I'm happy to share our Comprehensive Guide, for moving your data to QuickBooks Online.
Should you require additional assistance, please don't hesitate to contact us outside of this forum. It would be our pleasure to work with you in real-time, and ensure you're able to accomplish your QuickBooks goals as soon as possible!
Feel free to reach back out with other questions. We would be happy to help!