How Roblox runs on the GeForce GTX 1650
Our estimate puts the GeForce GTX 1650 at about 271 fps on High at 1080p in Roblox, which means it runs comfortably. On Low the same card manages about 300+ fps, and on Ultra about 195.
The graphics card is the limit here, so lowering the resolution or the quality preset is what raises your frame rate.
For a steady 60 fps, our estimate says: 1080p: Ultra (about 195 fps); 1440p: Ultra (about 140 fps); 4K: Ultra (about 78 fps).