I found a tweak guide of some sort advicing to add following lines to user.cfg file located in game install folder.
-------------------------------------------------start, don’t add
wh_pl_showfirecursor = 0
sys_streaming_CPU = 4
sys_budget_sysmem = 16000
sys_budget_videomem = 4000
sys_preload = 1
sys_PakStreamCache = 1
e_preloadMaterials = 1
e_ShadowsPoolSize = 512
r_TexturesStreamPoolSize = 1024
r_TexturesStreamingMaxRequestedMB = 500
r_TexturesStreamingResidencyEnabled = 1
r_texturesstreamingDeferred = 1
r_TexturesStreamingResidencyTime = 120
r_TexturesStreamingResidencyTime = 0.8
r_TexturesStreamingMipBias = -3
e_MergedMeshesOutdooronly = 1
e_streamcgfpoolsize = 1024
ac_enableExtraSolidCollider = 0
r_DeferredShadingAreaLights = 1
r_DeferredShadingSortLights = 1
ac_disableLivingVsLivingCollisions = 1
ac_disableLivingVsRigidCollisions = 1
–Workload Patch
Con_Restricted=0
r_OpticsBloom=0
r_MultiThreaded=1
r_MultiGPU=0
ai_NavigationSystemMT=1
e_ParticlesThread=1
e_StatObjMergeUseThread=1
gfx_loadtimethread=1
p_num_threads=1
sys_PakStreamCache=1
sys_preload=1
e_AutoPrecacheCameraJumpDist=1
e_AutoPrecacheTerrainAndProcVeget=1
e_AutoPrecacheTexturesAndShaders=1
r_DeferredShadingFilterGBuffer=1
–PUDDLE DISTANCE
r_RainMaxViewDist_Deferred=10000
-------------------------------------------------------------end, don’t add
Most important lines are
sys_streaming_CPU = 4
sys_budget_sysmem = 16000
sys_budget_videomem = 4000
r_TexturesStreamingMaxRequestedMB = 500
Where you need to change your own settings according to your hardware. For example I have 4 core CPU, 16GB RAM, 4GB of video memory and game installed on SSD drive that has read performance of about 500MB/s. I can definitely notice improvement with this user.cfg file. Lastly you need to add “+exec user.cfg” to launch parameters. In Epic Launcer go to settings and expand Kingdom Come. In Steam select game properties -> launch options. Hope this helps.