Webflow is awesome, but if you have a site more than 10 pages big it is painfully slow! It's not my internet, I have no extensions installed, I have a plethora of images in the image-bank, but even when there are none being used on the page it is still slow. Plus I just want to work offline sometimes. Webflow is great and I really enjoy using it, I WANT to use it, but I will regrettably jump ship (maybe to scarlet macaw or something) soon if this isn't sorted, as if it can't handle my site now, when it gets 10 times bigger I will be able to make cups of tea in-between doing things.
If it's meant to be a serious design tool, and not just a tool for hobbyists/one-offs, then it NEEDS to be able to be downloaded or worked upon offline. This will make it faster, not crash all the time when selecting images and I highly doubt I am the only one wanting this. It is the best software, but it is getting too slow.
Like Adobe do, have an offline and online availability - you could even charge more to use the offline version. I'd happily pay double or triple to be able to use this software without the slowness! It is taking 10's of seconds just to select things. Alternatively please go back to your old servers if you have changed, only noticed this over the past month or two. Thanks.