Using my standard "benchmark"-mission. 110s & 109s OTW to Dover vs. Hurris and quite a few Blens heading on a collision-course towards France. Quite a good test-mission this IMO, especially if you fly it for a while, since it'll put you over sea/land/sea/land and has a reasonable number of AC in it.
Anyway: So far, the only noticable difference for me was the inclusion of city-names on the FMB-map.
Other than that, I'm still getting micro-freezes and big freezes during gun-runs (DM/ballistics still causing huge FPS-drops it seems). "Rubber-banding"-effect while flying low over the terrain is also still noticable plus I think they have replaced it to some degree with good-old-fashioned FPS-drops. Looking around the cockpit at a formation of planes also causes stutters.
Max/average FPS under ideal conditions have not improved for me. Still getting around 40 FPS when everything does run smoothly (over water, no planes in my immediate area).

If anyone is interested, here's the mission I'm using for testing:
[PARTS]
core.100
bob.100
[MAIN]
MAP Land$English_Channel_1940
BattleArea 150000 100000 100000 150000 1000
TIME 4.16638888888889
WeatherIndex 0
CloudsHeight 1000
BreezeActivity 10
ThermalActivity 10
player BoB_LW_ZG26_I.000
[GlobalWind_0]
Power 3.000 0.000 0.000
BottomBound 0.00
TopBound 1500.00
GustPower 5
GustAngle 45
[splines]
[AirGroups]
BoB_RAF_B_218Sqn.03
BoB_RAF_F_FatCat_Early.01
BoB_LW_JG54_II.33
BoB_LW_ZG26_I.07
[BoB_RAF_B_218Sqn.03]
Flight0 1 2 3 4 5 6 7
Flight1 11 12 13 14 15 16
Class Aircraft.BlenheimMkIV
Formation LINEABREAST
CallSign 26
Fuel 100
Weapons 1
Skill 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
[BoB_RAF_B_218Sqn.03_Way]
NORMFLY 232896.00 245184.00 500.00 300.00
NORMFLY 291322.82 200047.07 500.00 300.00
[BoB_RAF_F_FatCat_Early.01]
Flight0 1 2 3 4 5
Class Aircraft.HurricaneMkI_dH5-20
Formation VIC3
CallSign 30
Fuel 100
Weapons 1
Skill 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
[BoB_RAF_F_FatCat_Early.01_Way]
ESCORT 232695.32 244913.38 500.00 300.00 BoB_RAF_B_218Sqn.03 0
ESCORT 290304.00 199296.00 500.00 300.00 BoB_RAF_B_218Sqn.03 1
[BoB_LW_JG54_II.33]
Flight0 1 2 3 4
Flight1 11 12
Class Aircraft.Bf-109E-3
Formation FINGERFOUR
CallSign 28
Fuel 44
Weapons 1 1
Belt _Gun00 Gun.MG17 MainBelt 0 1 2 1 5 1 6
Belt _Gun01 Gun.MG17 MainBelt 0 1 2 1 5 1 6
Skill 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
[BoB_LW_JG54_II.33_Way]
AATTACK_FIGHTERS 254592.68 227842.97 1000.00 300.00 BoB_RAF_F_FatCat_Early.01 0
AATTACK_FIGHTERS 235083.08 241875.76 1000.00 300.00 BoB_RAF_F_FatCat_Early.01 0
[BoB_LW_ZG26_I.07]
Flight0 1 2 3 4
Flight1 11 12
Flight2 21
Class Aircraft.Bf-110C-4
Formation FINGERFOUR
CallSign 13
Fuel 100
Weapons 1
Belt _Gun02 Gun.MG17 MainBelt 0 1 0 1 0 1 6
Belt _Gun06 Gun.MG15 MainBelt 0 1 2 3 6 Residual 10 ResidueBelt 0 1 2 3 6
Belt _Gun05 Gun.MGFF MainBelt 0 1 3 0 1 0 3 Residual 8 ResidueBelt 0 1 0 3 0 1 3
Belt _Gun04 Gun.MGFF MainBelt 0 1 0 3 0 1 3 Residual 8 ResidueBelt 0 1 0 3 0 1 3
Belt _Gun03 Gun.MG17 MainBelt 0 1 0 1 0 1 6
Belt _Gun00 Gun.MG17 MainBelt 0 1 0 1 0 1 6
Belt _Gun01 Gun.MG17 MainBelt 0 1 0 1 1 0 6
Skill 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
Aging0 81
BandColor0 0.92 0.72 0.15 0.80 0.80 0.80 0.15 0.15 0.15
[BoB_LW_ZG26_I.07_Way]
AATTACK_BOMBERS 254955.77 228191.66 1000.00 300.00 BoB_RAF_B_218Sqn.03 0
AATTACK_BOMBERS 231599.99 245559.78 1000.00 300.00 BoB_RAF_B_218Sqn.03 0
[CustomChiefs]
[Stationary]
[Buildings]
[BuildingsLinks]
S.