To give people an idea of how much it would "slow" down leveling.
If the cap was set to 1.5 million XP per hour, it would take a non-fighter at max speed:
Level 15 would take under 1 hour.
Level 25 would take 7 hours and 20 minutes.
Level 35 would take 32 hours.
Total time to go from level 20 to level 40 would be approx: 16.5 days playing time.
If it's set to 1 million per hour, you're looking at 24.5 days approx for 20 to 40.
You're looking at about a month (straight) of playing realistically to hit 40 in a category. Half that time for a fighter.
In the lower levels it's much quicker than the old buffer system.
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If you say plz because it is shorter than please, then I will say no because it is shorter then yes.