As someone else pointed out, the rubrics for each form of the Mass dictate when the altar is “dressed.” *It’s not up to the preferences of the individual celebrant. * Waiting to dress the altar during the OF is by design.
During the Liturgy of the Word, the focus is on the ambo and the spoken/sung word of God. When that part of the Mass is complete the Evangeliary is closed and often put in a place of respect.
When the Liturgy of the Eucharist begins, the focus shifts to the altar and the Sacrifice of Jesus Christ to His Father. To me it would appear to be a glaring sign of expediency at the price of reverence if if the altar was “pre-set.” It would also contravene the official rubrics although I have seen it done at daily Masses before.
Chalice veils, burses, palls, etc. may be used (but are not required) during the celebration of the OF Mass.
FWIW, the rubrics for the OF do not necessarily call for the deacon to dress the altar. That’s the job of the altar servers. Preparing the chalice is the job of the deacon.