7 monitors forP3Dv4.5

[Lieuwe]

Since 2 weeks no answer in the forum, so I post here my question.
PC information: motherboard i7-8700 3,2 GHz box 12MB Smart CAche processor - 2 videocards KFA2 nVidia GeForce 2070 8GB GDDR6 and Windows 10.
7 monitors ilyama prolite E2283HS-B3 21" .
In the middle starting P3Dv4.5 and i can stretched it out over 3 monitors. After that i stretched it out over the left and the right to all the 7 monitors. Then you see the horizon-lines and buildings has a corner it is not fluent. I watch many you-tube films about view-management and NVidia. But the problem is not solved.
When I use 7 monitors than the framerate goes from ± 55 framerates to ± 2 framerates.
If I make 7 pictures, each for every monitor, then also the framerate goes down.
Can somebody give me the advice to fill the 7 monitors with P3Dv4.5 and the framerate not goes down.
And the second question is, how must I change the view, that all the lines have no corners in it. That the other monitors are not stretched in their view.

[elmucki]

When I use 7 monitors than the framerate goes from ± 55 framerates to ± 2 framerates.

You got any idea the computing power it takes to draw across 7 monitors??? I had a 6 monitor set up... on 3 monitors i was lucky to see 30-40 fps, on a 6 monitor (2 rows of 3) i noticed 10-20 fps and i was running 2x Titans. Anyways, gotta get your expectations in order. You will not see 30+ fps across 7 monitors without issues.