Analog vs. Digital: Inducing artifact to resolve artifact generation

One of the consequences I've experienced from integrating older generation analog and digital devices is the 130-ms processing delay (essentially artifact) caused by cascading NIR-10 & NIR-12 DSP devices in the right audio channel.  This delay is due the comparatively slow processing speed of the 1990's-era DSP chips used in those devices.  While we can't speed up the DSP chips, it occurred to me that purposely inserting a 130-ms delay (essentially purposeful-artifact) in the opposite channel can balance the audio timing, returning it to more-or-less functionally normal operation.

When BOTH sides incur a 130-ms delay, it goes completely unnoticed (because it occurs in
both ears simultaneously).  An internet search on audio-delay devices turned up the AP-411 A/V
Lip Sync Corrector.  Brand new, they list for $180.  Fortunately, one was found on e-Bay for $75.
The device itself is amazingly tiny.

Altho the AP-411 was intended for A/V stereo (L/R) audio, I repurposed the device into processing both device-lines of the left-channel: an MFJ-752c analog device or an MFJ-784 DSP (w/o any time-delay artifact).  Use of a time-correction device enables listening to the same signal in both ears with different audio processing for each ear, without the time-delay induced echo.

Essentially, the AP-411 device converts analog audio to digital, inserts a time-delay, then converts
the digitized analog audio back to its original analog form, as if nothing happened.  A chip dedicated to this task alone does not need to run very fast in order to accomplish the time-synchronization.  Units like the JPS NIR-10 & NIR-12, because they are capable of a myriad of different processing algorithms, need LARGE multi-processing chips, which actually run more slowly and generate inordinate amounts of heat.

The goal of WQ6X audio processing is to make state-of-the-art utilization of BOTH analog
and digital technologies, providing the ultimate signal-intelligibility improvement.  Sometimes
the technologies need to "coaxed" into playing well together, allowing me to Maximize the Art
of Experimentation.

Do YOU combine analog w/digital techniques in processing RX audio?

What ideas have YOU Discovered?