Campaign often won't start at maximum video settings

[dumb_user]

I just started playing the game for the first time and wanted to start a new campaign. With the video setting "maximum" the game often crashes on that occasion. I tried "low" and it worked. I haven't tried "high" and "medium" yet, but I would like to play at maximum anyway.
The same happens with some single scenarios, e.g. Crete, while others run at maximum, e.g. End of the Bulge.
During the game I can put the settings back to maximum again without problems (so far).
It seems to be a graphic card performance issue, although I have an Nvidia GeForce GT 710 with 2 GB RAM which according to the manual should be ok. Windows 10 by the way.
Emptying and/or enlarging the in-game cache doesn't help (I only tried 2048 instead of 1024. Would more cache make a difference?).
After the crashes I get messages like these:
LoginId:f2a9a136417c72511b1a43ace598914d
EpicAccountId:
LowLevelFatalError [File:Unknown] [Line: 1444] Null SRV (resource 0 bind 0) on UB Lay-out (null)
Pan-zerCorps2_Win64_Shipping!FD3D11DynamicRHI::CommitGraphicsResourceTables()
PanzerCorps2_Win64_Shipping!FD3D11DynamicRHI::RHIDrawIndexedPrimitive()
PanzerCorps2_Win64_Shipping!FRHICommandDrawIndexedPrimitive::Execute()
Pan-zerCorps2_Win64_Shipping!FRHICommandListExecutor::ExecuteInner_DoExecute()
PanzerCorps2_Win64_Shipping!FRHICommandListExecutor::ExecuteInner()
PanzerCorps2_Win64_Shipping!FRHICommandListBase::~FRHICommandListBase()
Pan-zerCorps2_Win64_Shipping!FRHICommand<FRHICommandWaitForAndSubmitSubList,FRHICommandWaitForAndSubmitSubListString1075>::ExecuteAndDestruct()
Pan-zerCorps2_Win64_Shipping!FRHICommandListExecutor::ExecuteInner_DoExecute()
PanzerCorps2_Win64_Shipping!FRHICommandListExecutor::ExecuteInner()
PanzerCorps2_Win64_Shipping!FRHICommandList::EndScene()
Pan-zerCorps2_Win64_Shipping!FRHICommand<FRHICommandSetStereoViewport,FRHICommandSetStereoViewportString1081>::ExecuteAndDestruct()
PanzerCorps2_Win64_Shipping!FRDGBuilder::ExecutePass()
PanzerCorps2_Win64_Shipping!FRDGBuilder::Execute()
PanzerCorps2_Win64_Shipping!FDeferredShadingSceneRenderer::Render()
Pan-zerCorps2_Win64_Shipping!FRendererModule::RenderPostResolvedSceneColorExtension()
PanzerCorps2_Win64_Shipping!FViewUniformShaderParameters::operator=()
Pan-zerCorps2_Win64_Shipping!FRHICommand<FRHICommandSetStereoViewport,FRHICommandSetStereoViewportString1081>::ExecuteAndDestruct()
PanzerCorps2_Win64_Shipping!FNamedTaskThread::ProcessTasksUntilQuit()
PanzerCorps2_Win64_Shipping!RenderingThreadMain()
PanzerCorps2_Win64_Shipping!FRenderingThread::Run()
PanzerCorps2_Win64_Shipping!FRunnableThreadWin::Run()

Is there any chance to get the game running on maximum without buying a new graphic card?