The angle is univerall for all races, but charge up time, travel speed and interstellar multiplier is unique for all races.
For specifid ships, maybe you can make an upgrade which increase the phase speed.
you make tis a researchable passive ability like the scouts abilty to resist PJI's.
To adjust the phase speed characteristics, you need to change the PlayerTech/Psi/Phase.entity files
hyperspaceData
chargeUpEffectName "HyperspaceChargeUp"
chargeUpEffectNameBetweenStars "HyperspaceChargeUpSolarSystem"
chargeUpEffectSoundID "HYPERSPACE_CHARGEUP"
travelEffectName "HyperspaceTravel"
travelEffectNameBetweenStars "HyperspaceTravelSolarSystem"
travelEffectSoundID "HYPERSPACE_TRAVEL"
exitEffectName "HyperspaceExit"
exitEffectSoundID "HYPERSPACE_EXIT"
baseHyperspaceSpeed 29500.0
hyperspaceSpeedBetweenStarsMultiplier 24.0
hyperspaceSpeedToFriendlyOrbitBodiesMultiplier 1.0
baseHyperspaceAntiMatterCost 100.0
baseHyperspaceChargeUpTime 7.000000