Here some tweaks to improve framerate.

[GOZR]

In your \Documents\1C SoftClub\il-2 sturmovik cliffs of dover\confUser.ini

[ChatWindow]
0:-1=-posSize '0.939 0.942 0.061 0.058' -titleStr "Motor Controls" -border -alpha 130 -ualpha 0 -wrap -history 200 -timeout 10
0:262144=-lay 1 -fnt 0 -clr 0
1:-1=-posSize '0.832 0.803 0.167 0.145' -titleStr "Secondary Controls" -alpha 130 -ualpha 0 -history 200 -timeout 10
1:6=-font 0
1:5=-font 0
1:4=-font 1
1:7=-font 0
2:-1=-posSize '0.000 0.001 0.407 0.200' -titleStr Voice -alpha 130 -ualpha 0 -wrap -history 200 -timeout 10
2:2=-font 0
3:-1=-posSize '0.002 0.847 0.331 0.153' -titleStr "Info. Window 1" -border -alpha 130 -ualpha 0 -vscroll -includeTime -history 400 -timeout 10
3:3=-font 3
3:131072=0
3:1=-font 3
4:-1=-posSize '0.171 0.323 0.687 0.352' -titleStr NetStats -title -border -alpha 50 -ualpha 0 -custom
4:-2=-font 3 -color 139 -columnWidth '0.100 0.183 0.322 0.144 0.093 0.081' -columnSort 2