Maybe you could be more specific. Is it only certain creatures or all of them? Do they completely ignore you or do they just take their time before attacking? Any similar problems with npcs? Also, post your mod list. I know the Creatures mod makes it so that after you kill a certain number of cliff racers and foragers they are less prone to attack. There might be other such mods that people can pick out of your list.
its only some creatures and most NPcs that take a while to attack. I wont even take the advantage anymore.
here's my mod list if it helps
[Game Files]
GameFile0=Better Heads Bloodmoon addon.esm
GameFile1=Better Heads Tribunal addon.esm
GameFile2=Better Heads.esm
GameFile3=Bloodmoon Landscape Overhaul 1.0.esm
GameFile4=Bloodmoon.esm
GameFile5=GDR_MasterFile.esm
GameFile6=GOTYFullTidyZeroMpp.esm
GameFile7=Havish.esm
GameFile8=MCA.esm
GameFile9=Morrowind Advanced.esm
GameFile10=Morrowind Patch v1.6.5-BETA.esm
GameFile11=Morrowind.esm
GameFile12=Texture Fix 1.8.esm
GameFile13=Tribunal.esm
GameFile14=abotWaterLife.esm
GameFile15=Alakazar's Lamp.esp
GameFile16=Animated Morrowind 1.0.esp
GameFile17=Ashlander Travel.esp
GameFile18=Atronach Expansion X.ESP
GameFile19=AurielsBowSimple.esp
GameFile20=BM-Fixes.esp
GameFile21=BPC_MWSE_1.2.esp
GameFile22=Better Bodies.esp
GameFile23=Better Clothes_v1.1_nac.esp
GameFile24=Better Skulls.ESP
GameFile25=BetterClothesForTB.esp
GameFile26=BetterClothes_Patch.esp
GameFile27=Bloated Morrowind.esp
GameFile28=Book Jackets - Bloodmoon.esp
GameFile29=Book Jackets - Morrowind.esp
GameFile30=Book Jackets - Tribunal.esp
GameFile31=Building Up Uvirith's Legacy1.1.ESP
GameFile32=CM_Partners_3.0.esp
GameFile33=Census and Excise Office.esp
GameFile34=Clean Better Creeper.ESP
GameFile35=Clean Better Daedric.esp
GameFile36=Clean Better Portable Containers v1.1.esp
GameFile37=Clean Dragon Blade.esp
GameFile38=Clean Forever.esp
GameFile39=Clean Full Jenova's Children.ESP
GameFile40=Clean NaEelrin.esp
GameFile41=Clean master_index.esp
GameFile42=Clean_Fury.esp
GameFile43=Complete Armor Joints.esp
GameFile44=CompleteClaymore_Daedric.esp
GameFile45=Creatures.esp
GameFile46=DM_DB Armor Replacer-ExpDDBA.esp
GameFile47=DN-GDRv1_NOM.esp
GameFile48=Daedric Tower Shield.esp
GameFile49=Daedric_Warhammer_Repl.esp
GameFile50=DagonFel_Well_v2.esp
GameFile51=Dirnae's Slower Walk.ESP
GameFile52=Dodge Mod 1.2-WD (Enhanced-LD) (Tribunal).esp
GameFile53=Dragonbone Armor [v.1.2].esp
GameFile54=Dwemer Sentinel.esp
GameFile55=DwemerLoot1.0.esp
GameFile56=Dwemer_Cyborgs.esp
GameFile57=EDNHE.esp
GameFile58=ExcellentMagicSounds.esp
GameFile59=ExpandedBirthsigns4Purists.esp
GameFile60=Flee AI Tweaks.esp
GameFile61=Flora Glow 1.0.esp
GameFile62=GCD - Cult of the Clouds patch.esp
GameFile63=GCD Over 60 level speedup.esp
GameFile64=GCD v1.08 with Startscript, fixed [Galsiah].esp
GameFile65=GOTYSTMPPPatch.esp
GameFile66=Havish - Scimitar Update.esp
GameFile67=Havish Mini Patch.esp
GameFile68=Holy King Armor.esp
GameFile69=INDYBANK.ESP
GameFile70=Illuminated Order v1.0 - Bloodmoon Compatibility Extras.esp
GameFile71=Illuminated Order v1.0.esp
GameFile72=ImprovedTeleportation2.0.esp
GameFile73=JWR_Dwemer_L_Lefty.esp
GameFile74=K_Potion_Upgrade_1.2.esp
GameFile75=Key Replacer Trib & BM.esp
GameFile76=LeftGloves_Addon_v2.esp
GameFile77=Lich Father Act I.esp
GameFile78=Lich Father Act II.esp
GameFile79=Lothavor's Legacy BB addon.esp
GameFile80=Lothavor's Legacy.esp
GameFile81=MCA - More Enemies.esp
GameFile82=MCA - NOM Patch.esp
GameFile83=MWE_Armor_Effects2.1-halo (No Agility Penalty).esp
GameFile84=MWE_Base.esp
GameFile85=MWE_Blocking.esp
GameFile86=MWE_Combat.esp
GameFile87=MW_Adv_Required.esp
GameFile88=MW_CultOfTheClouds_v10.esp
GameFile89=Martial Code.esp
GameFile90=Mashed Lists.esp
GameFile91=Merged_Objects.esp
GameFile92=MoragTongWritFix.esp
GameFile93=NOM 2.13.esp
GameFile94=Netch Adamantium Armor II.esp
GameFile95=Nymeria's Faster Walk.esp
GameFile96=Nymeria's Monthly Respawn.esp
GameFile97=OR_SpiritEat.esp
GameFile98=Obsidian Armor V 1.0.esp
GameFile99=Oriental weapons pack.esp
GameFile100=Overlooked Meshes Galore.ESP
GameFile101=Pearls Enhanced - Colored Pearls Add-on.ESP
GameFile102=Prison Moon Enhanced.esp
GameFile103=Private_Mobile_Base.esp
GameFile104=Private_Mobile_Base2.esp
GameFile105=Private_Mobile_Base3.esp
GameFile106=Private_Mobile_Base4.esp
GameFile107=Scripted_Spells.esp
GameFile108=sixy Daedric Armor v1.1.esp
GameFile109=sixy Ebony Armor.esp
GameFile110=SilentCharGen.esp
GameFile111=SirLuthor-Tools.esp
GameFile112=Slof's BB neck fix.esp
GameFile113=Slof's Better Beasts a.esp
GameFile114=Spect Sorcery pt 1.esp
GameFile115=Stance Test 1.ESP
GameFile116=Stealth Enhancements-LD 1.5b (Tribunal).esp
GameFile117=Suran_Underworld_2.5.esp
GameFile118=The Imperial Legion Badge.esp
GameFile119=The Ultimate Knight Shop.esp
GameFile120=TheForgottenShields - Artifacts_VN.esp
GameFile121=The_Vvardenfell_Libraries.esp
GameFile122=Thirsk Expanded.esp
GameFile123=Twin Blades of Azzinoth.esp
GameFile124=Unique Banners and Signs.esp
GameFile125=UniqueFinery_NoRobe.esp
GameFile126=VA_ElvishSabres.esp
GameFile127=VA_HissyoKatana.esp
GameFile128=Vality's Bitter Coast Addon.esp
GameFile129=Vampire Embrace MCA Patch.esp
GameFile130=Vampire_Embrace.esp
GameFile131=Vampiric Hunger - SU.esp
GameFile132=Vampiric Hunger Base.esp
GameFile133=Vampiric Hunger Extended.esp
GameFile134=Vapor_Wraithv3.0.esp
GameFile135=Vivec Expansion 2.0.esp
GameFile136=Vurt's Leafy West Gash.ESP
GameFile137=WA_Signy_Signposts(!).ESP
GameFile138=Westly Presents_Aureals.esp
GameFile139=Westly_Presents_BB_Almalexia_Add_on.esp
GameFile140=Windows Glow - Bloodmoon Eng.esp
GameFile141=Windows Glow - Raven Rock Eng.esp
GameFile142=Windows Glow - Tribunal Eng.esp
GameFile143=Windows Glow.esp
GameFile144=abotWhereAreAllBirdsGoing.esp
GameFile145=adamantiumarmor.esp
GameFile146=bones.esp
GameFile147=correctUV Ore Replacer 1.0.esp
GameFile148=k_female_daedric_greaves.esp
GameFile149=k_weather.esp
GameFile150=md_magebane_replacer.ESP
GameFile151=no imperial cuiass.ESP
GameFile152=spc Blood Eye Sword v1.0.esp
GameFile153=spc_exsilium_sword v.2.0.esp