[Bug 42682] New: Titan Quest - Immortal Throne high cpu load when csmt enabled

https://bugs.winehq.org/show_bug.cgi?id=42682

Bug ID: 42682
           Summary: Titan Quest - Immortal Throne high cpu load when csmt
                    enabled
           Product: Wine-staging
           Version: 2.4
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail], [e-mail],
                    [e-mail]
      Distribution: ---

i compared enbale/disable wine-staging 2.4 csmt cpu load & fps with game Titan
Quest - Immortal Throne, record as bellow:

fps  cpu 
~30  >90%  csmt enabled, StrictDrawOrdering disabled
~26  >85%  csmt enabled
---------
~19  ~60%  csmt diabled

yes, csmt patch improve fps over 50%, but cpu load came up very high makes me
obviously feel playing game is not smooth, including starting/load maps/roles
moving & fighting etc. desktop became slower too.

csmt cause very high cpu load, is it should be or bug?