I have a high end computer which runs Crysis on high settings, so i don't think the problem lies in the graphics.
The slowdowns mainly happen in largely populated areas, like Balmora or Caldera. Sometimes CTD's happen when the game is loading the areas.
modlist:
GameFile0=Bloodmoon.esmGameFile1=BT_Whitewolf_2_0.esmGameFile2=Clean The Lost Artifacts of Morrowind.esmGameFile3=Imp Guard anticlone.esmGameFile4=Morrowind Patch 1.6.5 Beta (BTB Edit).esmGameFile5=Morrowind.esmGameFile6=MW_Children_1_0.esmGameFile7=Rise of House Telvanni.esmGameFile8=Texture Fix - Bloodmoon 1.1.esmGameFile9=Texture Fix 1.8.esmGameFile10=Tribunal.esmGameFile11=TR_Data.esmGameFile12=TR_Map1.esmGameFile13=TR_Map2.esmGameFile14=Wizards' Islands - Scourge of the Frost Bringer.esmGameFile15=ACD_PracticeDummy.espGameFile16=almalexia armor.espGameFile17=Animated Morrowind II.espGameFile18=Animated Morrowind.espGameFile19=Animated Soulgems.espGameFile20=Antares' Big Mod 5.2.espGameFile21=Balmora Un-Mod.espGameFile22=Barabus' fireplaces 2.espGameFile23=bcsounds.espGameFile24=Better Clothes Complete (BTB Edit).espGameFile25=Better Skulls.ESPGameFile26=BetterClothesForTB.espGameFile27=BetterMusicSystem_1.9.espGameFile28=Bloated Caves.espGameFile29=bones.espGameFile30=Book Jackets - Bloodmoon.espGameFile31=Book Jackets - Morrowind.espGameFile32=Book Jackets - Tribunal.espGameFile33=Books of Vvardenfell.espGameFile34=BTB - Alchemy.espGameFile35=BTB - Character.espGameFile36=BTB - Equipment.espGameFile37=BTB - Settings.espGameFile38=BTB - Spells.espGameFile39=Clean Restored Artifacts.espGameFile40=Clean SCastle_LoKKen_Patch.espGameFile41=Clean Solstheim_Castle_v1.1.espGameFile42=Cleaned_Pearl_Palace_v1.espGameFile43=constance1_0.espGameFile44=correctUV Ore Replacer 1.0.espGameFile45=Creatures.espGameFile46=DA_Complete.espGameFile47=DB_Attack_Mod3.espGameFile48=DN_AshVampires.espGameFile49=Ebonheart Fix.ESPGameFile50=Expanded Sounds.espGameFile51=Galsiahs Character Development.espGameFile52=GCD better balanced birthsigns.espGameFile53=GCD StartScript for Trib or Bloodmoon.espGameFile54=GCD_SS_patch.espGameFile55=GH_ES1.3 Patch.espGameFile56=GH_Extra_ES1.3 Patch.espGameFile57=Go To Jail 3.5 - T B.espGameFile58=Golden Gold.espGameFile59=Graphic Herbalism Extra.espGameFile60=Graphic Herbalism.espGameFile61=Hold it - replacer.espGameFile62=Hold it - resource.espGameFile63=Hold it - SF npc addon.espGameFile64=Hold it - TR&CoM addon.ESPGameFile65=Homes To Let v2pt0.espGameFile66=Icxthsword.ESPGameFile67=Illuminated Order v1.0 - Bloodmoon Compatibility Extras.espGameFile68=Illuminated Order v1.0.espGameFile69=Illuminated Windows - Bloodmoon v1.2.espGameFile70=Illuminated Windows v1.2.espGameFile71=Immersive Chargen.espGameFile72=Improved Hand to Hand.espGameFile73=Inventory Search.espGameFile74=Key Replacer Trib & BM.espGameFile75=KS_Julan_Ashlander Companion_1.3.espGameFile76=LA_MWSE Addon.espGameFile77=LCV Schedule Markers.espGameFile78=LeftGloves_Addon_v2.espGameFile79=LGNPC_Aldruhn_v1_20.espGameFile80=LGNPC_AldVelothi_v1_20.espGameFile81=LGNPC_GnaarMok_v1_20.espGameFile82=LGNPC_HlaOad_v1_32.espGameFile83=LGNPC_IndarysManor_v1_51.espGameFile84=LGNPC_Khuul_v2_20.espGameFile85=LGNPC_NoLore_v0_83.espGameFile86=LGNPC_PaxRedoran_v1_20.espGameFile87=LGNPC_Pelagiad_v1_30.espGameFile88=LGNPC_SecretMasters_v1_30.espGameFile89=Lgnpc_SN.espGameFile90=LGNPC_SoulSicknessPatch_v1_00.espGameFile91=LGNPC_TelMora_v1_20.espGameFile92=LGNPC_TelUvirith_v1_20.espGameFile93=LGNPC_VivecFQ_v2_10.espGameFile94=LGNPC_VivecRedoran_v1_50.espGameFile95=Living Armors 1.3 - Warp.espGameFile96=Living Armors 1.3.espGameFile97=Loot Sack.espGameFile98=MA_snowprincetomb_v3.espGameFile99=mel_teleportPlugin_1_3.espGameFile100=mel_teleportPlugin_1_3_JulanAddon.espGameFile101=mel_teleportPlugin_1_3_Patches.espGameFile102=Merged_Objects.espGameFile103=More Better Clothes.ESPGameFile104=Morrowind Battle Cry.espGameFile105=Mournhold Overhaul - No NPC's.ESPGameFile106=Neo's Unique Creatures.espGameFile107=New Argonian Bodies - Mature.espGameFile108=New Khajiit Bodies - Mature.espGameFile109=New Veloth's Judgement 2.espGameFile110=New Voices.espGameFile111=NewBlood_MwTbBm1.1.espGameFile112=NPC Functionality.espGameFile113=NPC LCV Locks.espGameFile114=NPC LCV Schedules 03.espGameFile115=OR_Fang.espGameFile116=PlayableChildren2.0.espGameFile117=Provincial_Bath _Shoppe_v1.espGameFile118=PSsorticon.espGameFile119=Psy_IronMeshImprove_Uniques_BME.espGameFile120=Pursuit Enhanced.espGameFile121=Realistic Combat.espGameFile122=Reign of Fire v1.92BETA [Razhkul, Rev. Gluby].espGameFile123=RKCriminals TR&BM.espGameFile124=RoHT CoM Addon.espGameFile125=Scripted_Spells.espGameFile126=Shieldfx.espGameFile127=SirLuthor-Tools.espGameFile128=Sleepers, Awake!.espGameFile129=sm_ForgottenHalls.espGameFile130=SNR_ThievesStep_Standart.espGameFile131=Starfires NPC Additions ver-1.11.espGameFile132=Statue Replacer - Normal.espGameFile133=Syc_AtHomeAlchemy.espGameFile134=Syc_MorrowindsStupidestCriminals.espGameFile135=TargetSpellSpeedMod.espGameFile136=The Neverhalls.espGameFile137=The Raven.espGameFile138=TheFrostmourneComplete.espGameFile139=TLM - Ambient Light + Fog Update.espGameFile140=TLM - External Lights Ownership.espGameFile141=TLM - Light Sources (Clearer Lighting).espGameFile142=TLM - Light Sources (Lanterns).espGameFile143=Training_Limit.espGameFile144=TVwofs.espGameFile145=UAR_ChodalaBoots.espGameFile146=UL v2.0 RoHT v1.52 Compatibility.espGameFile147=UL_chess_addon.espGameFile148=UL_MWSE_patch.espGameFile149=UL_Primus_MWSE.espGameFile150=UL_TLM_ambiance.espGameFile151=Undeads Skeletons Arise from Death.espGameFile152=Unique Banners and Signs.espGameFile153=Unique Jewelry and Accessories.espGameFile154=Unique Tombs.espGameFile155=UniqueFinery.espGameFile156=Uvirith's Legacy Book Jackets Add-on.espGameFile157=Uvirith's Legacy CoM Add-on.espGameFile158=Uvirith's Legacy_Final_2.0.espGameFile159=Vality's Ascadian Isles Addon.espGameFile160=Vality's Balmora Addon.espGameFile161=Vality's Bitter Coast Addon.espGameFile162=Visceral Discernment.espGameFile163=Vurt's Ashlands Overhaul.espGameFile164=Vurt's Grazelands Trees.espGameFile165=Vurt's Solstheim Trees & Bushes Replacer.espGameFile166=Water Level Fix - Full.espGameFile167=WA_Signy_Signposts(!).ESPGameFile168=Westly's Master Headpack X.espGameFile169=Wizards' Islands Super Patch.espGameFile170=Xenn's Strict Factions.ESPGameFile171=you are being robbed 3.esp
Any help would be appreciated.