.NET DLL load time is slow, causing the components to be slow to respond
Please take a look at the following Microsoft news article that discusses it:
It is also possible that Anti-Virus software may be checking the CRL.
Additionally when using the .NET Framework 3.5 or higher, you may be able to decrease load times by bypassing Authenticode verification. Details about how this is accomplished can be found on the following Microsoft news article under the "Optimize Authenticode" section:
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