DeepSeek PC looks blurry on a 4K screen (2026)
Check the monitor scale in Windows display settings.
Try 150% then restart the app.
Keep the window on one screen.
Update the desktop client.
Note the scale that stayed sharp.
Change one variable at a time and confirm what actually helped.
If a company policy is involved, rule that out before chasing client settings.
Write the working steps into a short checklist for next time.
Export or screenshot a good setup so reinstalls are faster.
If it still flakes, retest on a clean network such as phone hotspot.