Morrwind.ini on PC and on XBOX have some differences.
Maybe some PC ini strings should be changed like XBOX?
XBOX have new strings:
Palettize=1 - [Fonts] - ?
No String Optimize=0
SecsPerEnvUpdate=20.0 - [PixelWater]

Differences:
PC
[Weather]
Timescale Clouds=0
Precip Gravity=575

XBOX
[Weather]
Timescale Clouds=1
Precip Gravity=775

PC
[Weather Clear]
Sky Night Color=009,010,011
Fog Night Color=009,010,011
Sun Night Color=059,097,176

XBOX
[Weather Clear]
Sky Night Color=009,012,015
Fog Night Color=009,012,015
Sun Night Color=081,105,155

PC
[Weather Cloudy]
Sky Night Color=009,010,011
Fog Night Color=009,010,011
Sun Night Color=077,091,124

XBOX
[Weather Cloudy]
Sky Night Color=011,011,013
Fog Night Color=011,012,013
Sun Night Color=080,092,122

PC
[Weather Overcast]
Sun Sunrise Color=087,125,163
Sun Sunset Color=085,103,157
Sun Night Color=032,054,100

XBOX
[Weather Overcast]
Sun Sunrise Color=109,125,141
Sun Sunset Color=106,114,136
Sun Night Color=052,061,080

PC
[Weather Rain]
Sun Night Color=050,062,101

XBOX
[Weather Rain]
Sun Night Color=066,070,085

PC
[Weather Thunderstorm]
Sun Night Color=055,076,110

XBOX
[Weather Thunderstorm]
Sun Night Color=072,081,094

PC
[Weather Snow]
Snow Height Max=700
Max Snowflakes=750

XBOX
[Weather Snow]
Snow Height Max=7000(!)
Max Snowflakes=500

PC
[Weather Blight]
Disease Chance=.10

XBOX
[Weather Blight]
Disease Chance=.050
MSFD recommends to change Disease Chance to 0.