No properties of the compounds themselves will change.
But when you mix compounds together into a bigger single shot, you increase the size of the injection depot. We know that changing the carrier oil used, location of the depot, and volume size of the depot affect the release rate into the bloodstream.
You won’t grow any faster or slower or be any /less stronger in practice, but if you combine your oil into one larger shot it will take longer to absorb all the Tren Ace than if you had two separate smaller shots (whether the compounds were mixed or isolated). It will also absorb slower in places like the glute or vetroglute than the medial delts, for example. This is another reason why less frequent shots are typically performed in those big lower-bloodflow muscles in actual medicine, because it throttles the release a bit (which lowers side effects).
If you want to “feel” Tren Ace fastest, pin it solo in things like delts or pecs, maybe quads. If you want to tone it down slightly, pin frequently but use those bigger muscles and also mixing it with your other stuff into a bigger volume shot for the day. IE putting half a cc in each delt will feel a little different than 1 single total cc done in the glute, or even lat.
But this is seriously trivial; you’d get a bigger net difference from placebo honestly.