limit to cryptonight :
there are 2160BRAM+960URAM in XCVU9P,you can use 38MB in big ram cascade mode,that is 19 core
each cryptonight  hash need 1M memory read and write cycles.
if you remove all pipeline,you may get 100H @100MHz per core.
if you all pipeline to improve fmax,you will get slower hashrate.
it maybe very hard to run 100MHz with no pipeline.
assume it is 100MHz,19CORE, the max hashrate is 1900H/s.
if using extern DDR4,the limit is bandwidth,36MB per hash,each DDR4-2400 may get 533H/s,
but the cryptonight  random access rate is 16byte ,memory random access rate is 128byte , the valid efficiency is 1/8
each DDR4-2400 may can get 66.6H/s,and 4 DDR4 you get 266H/s

the max theoretical cryptonight hashrate is 1900+266=2166 H/s
Don't dream to get 22KH/s