The editor in Dreamweaver 20.2 Build 15263 is so slow that I can regularly type ahead of the response on the screen, and I sometimes get a “not responding” message.
I am editing an HTML file that is 28KB, but has 20 images of approximately 25 KB each. In addition to the source code there is also the following: bootstrap-4.2.1.css file, custom.css, jquery.fancybox.min.css, nav.inc. footer.inc.
Other open applications include MS Word, Firefox, and Outlook.
All files reside on the my desktop PC, which is an Intel(R) Core(TM) i3-6300 CPU @ 3.80GHz, with 16.0 GB Installed RAM, running a 64-bit OS and Windows 10 Pro, Build 18362.959. No processor has more than a trivial amount of usage and no disk is much more than half used.

BTW, the Dreamweaver editor is slowest when backspacing.

I have noticed there has been a recent issue with Dreamweaver when typing it is either a lag in the input or either it does a slight freeze. I have checked my own computer to make sure and have enough RAM to run it and other things in the background.

Even have disabled prior applications to test it and still a lag in the interface when trying to code HTML templates and other markups. The only one that doesn't have an issue filetype wise is coding CSS stylesheets. I don't know if this was reported before, couldn't find it searching for the issue earlier but this showing to be an issue and major one now that I have noticed.

Dreamweaver v21.0 Build 15392 file dates on downloaded files are WRONG. DW is totally unusable for downloading.
This happens on most files, the Creation date is sometimes changed, the modified date is always changed.
The date shows as 1/27/1990 in DreamWeaver, and as 4/11/2262 in Mac Finder.
This does NOT happen if I use Forklift V 3.4.4 Build 211 to download files.
MacBook Pro 15 Big Sur Ver 11.1 Build 20C69
Intel Intel i9 2.9 Ghz, 32 Gb mem, Radeon Pro 560x, 2 TB Apple SSD

I have tried Reset DW Prefs; Rest MacBook Date and Time, Enable DW Sync, reboot Mac.

I have purchased a subscription to the latest DreamWaver, Illustrator and PhotoShop (all are creative cloud). However, I have some issues with DW. The problem is that it takes so long to connect to the remote server via FTP, if at all possible. All the time I have to enter the setup and uncheck and uncheck to use passive FTP. Suddenly upload is canceled and it takes an awful long time to upload regular HTML, XHTML or PHP files the times it works. In the previous versions, this has never been a problem. I have a fast fiber optic line and everything else goes super fast, even when I go back to previous versions of DW. Is this a known problem, and do you have a solution to the problem? DW version is 21.1 - 15413 build for PC (not Apple / MAC).

I think it would be a helpful idea to give Dreamweaver users access to information about new functions, especially since those information masks are not only informative, but also contain useful selection, change and start functions.

(Note: due to my translation of the German terms into english the terms may not match the Adobe terms used in English and should be understood accordingly)

The windows or selection masks "Info about new functions" displayed when installing or restarting Dreamwever cannot be displayed or used again without deinstallation and restart (at least within my configuration macbook pro BigSur 11.1).

Resetting the "Info about new functions" under Dreamwever settings with the necessary restart of the program has no effect - the information is no longer displayed and remains inaccessible (for me without deinstallation and reinstallation / start).

At the same time I noticed another obstacle: As soon as the "Info about new functions" is displayed after reinstalling and starting Dreamweaver, this information can no longer be hidden, the window cannot be closed, Dreamwever does not let you exit, does not exit immediately.