After updating Scrivener 1, Scrivener 3 runs slower, takes a long time to load. There are a huge number of fonts installed that I don’t need. How do I delete them? Requests to the support service remain unanswered. Scrivener 3 does not recognize the names of PostScript fonts available in Windows 10, but uses them. The pause when loading the Russian-language spellchecker is about 90 seconds. It is impossible to work normally in scrivener 3. Does anyone have any experience solving such problems?
Hi Serge,
I’m not L&L Support, just a fellow customer. 
Generally, I too find Scriv 3 slower than Scriv 1. But it is very usable, and your situation sounds abnormal.
My understanding is that Scrivener doesn’t carry around fonts. At Scriv startup, it’s just loading the fonts already installed on your PC. You would delete them via Windows Font Settings.
They’ll get to back you eventually. I’ve found that Support queries typically take 3-4 days. There should be a nearly immediate auto-response, and then a few days later a human response. Make sure these haven’t gone to your spam folder, as that is a relatively frequent occurrence. All that said, I entered a ticket this morning, and four hours later have not received the auto-response, so possibly their ticketing system is having issues.
Sorry, can’t help, as I don’t know anything about this. 
One thing you should definitely try as a test is temporarily disabling your antivirus software, and see if that improves Scrivener’s speed. There have been frequent complaints on the forums about AVs that don’t play well with Scrivener. If you do this test and find there is an improvement, then whitelist Scrivener in your AV.
Best,
Jim
Jim, it’s like you looked at my Spam folder :-). The support guys really reacted quickly. I will follow their recommendations and then let you know what will happened. Thank you for advice.
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Jim, here is my final report. Thanks to the support team, my problem was solved. With app Support assistance of HP and new Radeon software I found and updated the video card drivers of my HP Probook. Then I removed Scrivener 3 and Scrivener 1.9, cleaned the registry, downloaded and installed a new S3 distribution. During the first start of the program, I chose the location of the backup folder and the previous theme. At this point, the further opening of the program stopped. There was no Scrivener 3 in the process manager. And only when I restart program the main window was opened completely, without asking me to enter the license. My previous theme of the program window was installed. Somehow, the license and theme were stored in my laptop during the entire update and installation session. The response to mouse clicks now is quick, which made me very happy. So, I have now a wonderful working tool.
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Serge, congratulations – that’s perseverance! Thank you for the detailed report, I’m sure it will help some future poster down the line. 
Best,
Jim
That was the problem, then? I don’t see how any of the rest of it could be.