You've never had such a problem before what? What changed? If you have an idea of that you're halfway there.
How does it get bad? does it fade out, stack, blur...? does it happen in any other applications? How long does it take to go bad? Windows 10 (1550ti's are used in Hackentoshes so it could be a mac)? Laptop or Desktop? Video problems could be from a bunch of different things from Windows conflict, Graphics Card, Graphics Driver, Graphics Settings, Cable, Monitor, the Application, etc.
I didn't install all the Nvidia software with my card and am not near it, so I don't know if anything in the settings could help this or not.
My general video issue trouble shooting advice is to open 'Device Manager' by right clicking on the windows icon and choosing it. Expand Display Adapters, select the Nvidia card and press delete --[DO NOT CHECK THE BOX TO DELETE THE DRIVER!]--. Click yes and then restart. Windows will reinstall the driver on reboot. So if it got corrupted it should be reinstalled with a backup after booting ,unless you checked the box to delete it - then you'll have to download a new driver. Try Studio One again does it still go bad? Try booting to safe mode and test S1 in that mode(Sound might not work but it doesn't matter.) If it looks fine, more than likely it's a Windows/ Nvidia driver issue. Reboot, it's time to go to Nvidia's website and download a an updated driver, if there isn't one download a previous version. Install it and reboot, try S1 again. Try changing the scaling in Windows Settings Display, in theory it shouldn't make a difference but it'll take one minute and you might get lucky. If all else fails, uninstall reinstall studio one from a fresh download. If it's the same, try an updated version, if your on that version try a previous version and test again. That's about all I can think of off the top of my head, besides trying a different monitor and monitor cable. Good luck.