[Harry777]

Harry777 - What type of device are you using? Did you enable the setting to "Enable editing of embedded annnotations"? If so, that's going to have a performance impact because it has to re-render the page after entering or leaving the annotations editor. Similarly, if you save the annotations to the PDF itself, MobileSheets is going to have to save out the changes to the PDF and then re-render the page. This causes the saving dialog you mentioned. In general, it's advised to leave those settings off unless you absolutely need to have access to the PDF annotations or you need to have all annotations written to the file. As far as the black pages, after 3.0.2 is available (hopefully by tomorrow or Tuesday at the latest after Microsoft approves it), I would like to see if you are still seeing those. I am still working on identifying potential issues that can cause black pages. MobileSheets now uses Win2D for all rendering, which is using Direct2D for all drawing. It's possible this is not working well with your device depending on the hardware. Most of what you are describing so far sounds like there are some major performance issues with your device. How much RAM does it have? How large are the PDFs you are loading? It seems crazy to me that it's taking 8-10 seconds to save changes to a PDF, but I guess if the PDF is 200+ MB, that might be possible. I did not test with files of that size. As far as the zooming, it would be great if you can test that again with 3.0.2 as I recall making a lot of bug fixes while testing. 

As far as the last issue you reported, can you please try tapping the top left or top right corner when the annotations aren't showing after exiting the annotations editor? This skips to the previous or next layer, which will hide all of the annotations in the current layer. This is the only thing I can guess as to what might be happening, because I'm definitely not seeing any issues with annotations disappearing unless that action is triggered. If that is the issue and you don't plan to skip between annotation layers, you can turn those touch actions off under Settings->Touch & Pedal Settings->Touch Actions

Hi Mike,

So I'm using a Surface Book 3 15' for all my work.

I disabled all the options having to do with working with embedded PDF info and saving annotations to the PDF, and it dramatically increased save times (basically instant now)!

I will definitely check out the black pages issue when I get my hands on 3.0.2.

It's definitely disheartening to to hear that the SB3 might be too slow for some MobileSheets tasks, but what can you do? Either way, I have 16gb of ram, and the PDFs I use are typically around 50mb or more.

I'll also test the zoom lag on 3.0.2.

As far as touch actions, I have it set so that I only use 3 of them, and those are for starting/stopping the metronome, and resetting the zoom. I haven't been able to recreate that specific bug yet, but I think it had to do with saving annotations to the PDF, so I think I'm safe from them now that I disabled those options.

If you know any ways I can speed up MobileSheets in general on any Windows PC, let me know!

Keep up the great work, Mike! We all appreciate it