VistaDB is compiled AnyCpu so it will work with either architecture of process. In general 64-bit is going to be faster, but the key is that the host have enough RAM; if a computer as < 2 GB then 64 bit will make things worse by consuming more memory for each object and pointer. VistaDB caches in the current process, and makes a lot of objects so it is sensitive to memory pressure.
I have been compiling all my systems in AnyCpu mode. Couple of my Systems were running very slow and then I changed it over to x86 and the speed seems to be much better.
Speed seems to be the issue with systems that I use VistaDb. Others there are no issues.
Does VistaDB require x86 mode?