600 miles ago when I slap on my turbo, it pulls really strong, especially from 2500-4000 when it start spooling.

The last couple of days, it was really hot, and somehow I feel very weak torque. I thought it's the intake temperature, but now at night, it's getting really bad. I would call it either hesitation, or really slow acceleration especially starting at 2k rpm. My boost gage shows full boost, though, and air to fuel ratio is perfect, just like what I tuned for.

At idle, i kinda hear clicking noise near the valvetrain near the intake manifold side, but it maybe just me trying to hear too much.

I was scared that I blew a headgasket or screw up sth bad, but I just did compression check and I tested 205-200-205-205

Ideas?