Fmeserver uses longer time for the first request. If a workspace is run several times it takes less than a second, but the first request is slow. It can take more than 5 secods to creating the reader:
2018-4-8 16:07:39 | MULTI_READER(MULTI_READER): Adding MSSQL_SPATIAL Reader with keyword MSSQL_SPATIAL_12018-4-8 16:07:39 | Using Multi Reader with keyword `MULTI_READER' to read multiple datasets2018-4-8 16:07:44 | Creating reader for format: Microsoft SQL Server Spatial