MBP Windows 7 scrolling lags

[Mooncoil]

Macbook pro 2017
OSX High Sierra 10.13.5
Virtualbox 5.2.12
Guest machine Windows 7 x64
 Using trackpad. when i scrolling up or down i see lags.
Guest additions installed.
What it can be?

[socratis]

We're going to need to see a VM log from a complete VM run:

• Start the VM from cold-boot (not from a paused or saved state) / Observe error / Shutdown the VM (force close it if you have to).
• With the VM completely shut down (not paused or saved), right-click on the VM in the VirtualBox Manager and select "Show Log".
• Save only the first "VBox.log", ZIP it and attach it to your response. See the "Upload attachment" tab below the reply form.

BTW, have you tried a mouse instead of the trackpad?

[Mooncoil]

I don't try mouse.

My log file
[Mod edit; RTF zipped file removed]

[socratis]

I deleted your RTF formatted log. There is absolutely no reason to save it as RTF. Just follow the directions and simply ZIP the VBox.log, no other "initiatives" please.

And please try a mouse...

[Mooncoil]

Sorry for RFT

VBox.log.zip

(29.4 KiB) Downloaded 12 times

[Mooncoil]

Any info ?

[socratis]

1. Please do NOT bump a thread unless an answer hasn't been given within a week, not less than 24 hours.
2. Why did you choose a VHD hard disk? Why a SCSI controller? Was this VM created from scratch?

   00:00:01.217062 [/Devices/ahci/0/LUN#0/Config/Parent/] (level 6)
   00:00:01.217063   Format <string>  = "VHD" (cb=4)
   00:00:01.217064   Path   <string>  = "/Volumes/SSD/VM/Web/Web.vhd" (cb=28)
   00:00:01.217065 
   00:00:01.217065 [/Devices/ahci/0/LUN#1/] (level 4)
   00:00:01.217066   Driver <string>  = "SCSI" (cb=5)

3. Try to set your guest size to a more "standard" resolution, something like 1280x720 for example.

   00:02:13.644267 GUI: UIMachineView::storeGuestSizeHint: Storing guest-screen size-hint for
                   screen 0 as 1313x767

4. Can you describe where exactly do you see the lag?

[Mooncoil]

I created a new virtual machine with a VDI disk.
Installed guest add-ons.
And changed the screen resolution.
When I scroll the page up or down - it twitches. Scrolling is jerky right at the bottom of the page.
Same lags
I guess it's because of the touchpad.

Strange but on Windows 10 everything works fine.

I enclose the video streamable(.)com/s288e