The vector skins (Office 2019, VS 2017) are slow in 18.1. The native WindowsXP skin renders using GDI+ and is lightning fast.
Accessing DevExpress 18.1 installers and hotfixes requires a licensed account via the DevExpress Download Manager . The 18.1 branch, which supports Visual Studio 2010-2017, finalized with version 18.1.18 available through the Client Center, NuGet, or specific support tickets. DevExpress.Data 18.1.18 - NuGet devexpress 181 download hot