After playing so much I decided to share these loadings tests of some emulators/old versions. Maybe these can't be the same loadings as your emulator because of my configuration, but it is interesting to know that the comparisons are quite different.

(Updated 22/August/2022) EMU ePSXe X.Y.Z and more emulators and consoles - PS1 settings

0:10 - 0:12.533 load times
PS1 EMU (version? type EMU?)

0:08 - 0:10.917 load times
PS1 EMU (ePSXe 2.0.0)

0:06 - 0:08.575 load times
PS2 FDS

#(Updated 2022-02-15) EMU ePSXe X.Y.Z and more emulators and consoles - PS1 settings

It will be compared 4 loading screens:

1 - Lilo's House
2 - Koa Wood
3 - Hula School
4 - Kaona Road

I selected a frame before the loading screen appeared as shown in the images:

Times PS1:

Analyzed Runs:
Cobra_X21 - 40m 54s - PS
Zenniah - 43m 38s - PS
Carter44 - 57m 47s - PS

#Times PS2:

Analyzed Runs:
Neutrino - 27m 20s - PS2 (FDS, Model 77000)
Violin - 27m 33s - PS2 (FDS)
tonykordatos - 36m 31s (FDS)
Nooga - 37m 29s - PS2 (FDS)
5sk84uhlivin - 49m 19s - PS2

#Times EMU:

#Video: The video is quite long, because I put all the versions I examined

PS2 console - 0:30.050 > 0:34 (Fast Disk Speed or No?)
pSXfin v1.13 - 0:31.500
ePSXe v1.5.0 - 0:33.150 (bug no/low sound effects)
ePSXe v1.2.0 - 0:33.250 (bug sound in pause)
ePSXe v1.0.1 - 0:33.300 (bug sound in pause)
ePSXe v1.5.2 - 0:33.650 (bug sound in pause)
PSXjin v2.0.2 - 0:35.600 (bug no/low sound background)
ePSXe v1.7.0 - 0:36.650 (bug sound in pause)
ePSXe v1.6.0 - 0:37.100 (bug sound in pause)
ePSXe v2.0.0 - 0:38.300
ePSXe v1.9.25 - 0:38.350
ePSXe v1.8.0 - 0:39.550
ePSXe v1.9.0 - 0:41.600
ePSXe v2.0.5 - 0:44.650
PS1 console - 0:44.400 > 0:48.250
Duckstation - 0:45.700
ePSXe v1.0.0 - N/A (the game did not run in this version)
Mednaffe 0.8.8 - ?
XEBRA - ?
BizHawk - ?
RetroArch - ?
PS3 console - ?
Softmod PS1 - ?
Softmod PS2 - ?
Softmod PS3 - ?
Emurayden v.2.2 - ?
ePSXe v.1.9.0 (Linux) - ?
ePSXe v.1.9.25 (Linux) - ?
ePSXe v.2.0.2 (Linux) - ?
ePSXe v.2.0.2 x64 (Linux) - ?
ePSXe v.2.0.2-1 - ?
PCSX Reloaded Alpha 1 - ?
PCSX Reloaded r57226 - ?
PCSX Reloaded r63123 - ?
PCSX v.1.5 - ?
PSXEVEN v.0.19 - ?
SSSPSX v.0.33 - ?
SSSPSX v.0.34 - ?
XEBRA (17-June-2009) - ?
XEBRA (4-August-2009) - ?
XEBRA (4-September-2008) - ?

#(Obsolete 2021-03-18) EMU ePSXe X.Y.Z - PS1 settings

#Console/Emulators - Times
pSXfin v1.13 - 01:04
ePSXe v1.5.0 - 01:05 (bug no/low sound effects)
ePSXe v1.2.0 - 01:05 (bug sound in pause)
ePSXe v1.0.1 - 01:05 (bug sound in pause)
ePSXe v1.5.2 - 01:10 (bug sound in pause)
PSXjin v2.0.2 - 01:11 (bug no/low sound background)
ePSXe v1.7.0 - 01:14 (bug sound in pause)
ePSXe v1.6.0 - 01:16 (bug sound in pause)
ePSXe v1.9.25 - 01:16
ePSXe v1.8.0 - 01:20
ePSXe v2.0.0 - 01:20
ePSXe v1.9.0 - 01:23
ePSXe v2.0.5 - 01:34
ePSXe v1.0.0 - N/A (the game did not run in this version)

pSXfin v1.13 - 01:04 -

ePSXe v1.5.0 - 01:05 (bug no/low sound effects) -

ePSXe v1.2.0 - 01:05 (bug sound in pause) -

ePSXe v1.0.1 - 01:05 (bug sound in pause) -

ePSXe v1.5.2 - 01:10 (bug sound in pause) -

PSXjin v2.0.2 - 01:11 (bug no/low sound background) -

ePSXe v1.7.0 - 01:14 (bug sound in pause) -

ePSXe v1.6.0 - 01:16 (bug sound in pause) -

ePSXe v1.9.25 - 01:16 -

ePSXe v1.8.0 - 01:20 -

ePSXe v2.0.0 - 01:20 -

ePSXe v1.9.0 - 01:23 -

ePSXe v2.0.5 - 01:34 -

ePSXe v1.0.0

N/A (the game did not run in this version)