Not effectively, I'm pretty sure.

 DGB-SHA, DGB-Qubit and DGB-Scrypt are ASIC mined (Bitcoin miners like the S9, the Baikal, and Litecoin miners like the L3+ and A2/A4 respectively).

 DGB-Skein and DGB-Groestl are GPU mined.

 The neoscrypt coins have GPU miners available, but I've never really looked into those to date.

 As far as I know, the only thing worth mining at this time on a CPU is the cryptonight coins like XMR(Monero), at which your Ryzen is fairly good.


 I didn't notice any pool-side improvement on DGB-groestl using the KlausT fork of ccminer vs trpv, and very little if any better on the miner reported rate.
 
 Best to check for at least a 3 hour period though, normal variation could EASILY exceed that 50% variance you say on a 15-minute test.



 Trying to mine scrypt on a CPU has been worthless for YEARS - GPUs for scrypt got replaced 4-5 YEARS ago by ASIC, and that was a year or two after CPUs got blown out of the water by the first GPU-based miner.

 Do you even get 100khash/sec on your Ryzen for scrypt?

 For comparison - my Innosilicon A2 units (which are GENERATION OLD ASIC and pretty badly outperformed by the more recent Bitmain L3+ and Innosilicon A4) pull 110 MEGAhash (on the miner, about 105 usually at the pool) on 1250 watts draw at the wall.