Your CPU is almost certainly the issue since the "silver" variant of Pentium CPUs are basically just the newer branding for Intel's Atom CPUs; it's the "gold" variant of Pentium CPUs that are basically just an i3 with fewer CPU threads. Since Dolphin is very heavy on only two CPU threads, this means that fewer faster threads will vastly outperform having a greater quantity of slower threads - my own 2core/2thread Pentium G3258 is a great example of this and competes well with not only the 4c/8t i7-4790K but also the 16c/32t Ryzen 3950X.
(though, just like "Atom", even this "silver" branding has since recently been retired by Intel in place of just "Intel processor"; the "gold" branding has similarly been retired and will remain as just "Pentium" going forward like it was before the silver/gold branding got introduced in the mid 2010s)
(though, just like "Atom", even this "silver" branding has since recently been retired by Intel in place of just "Intel processor"; the "gold" branding has similarly been retired and will remain as just "Pentium" going forward like it was before the silver/gold branding got introduced in the mid 2010s)
Dolphin 5.0 CPU benchmark
CPU: Pentium G3258 @ 4.5GHz 1.24v
GPU: Intel integrated
RAM: 4x4GB Corsair Vengence @ DDR3-1600
OS: Linux Mint of some variety + [VM] Win7 SP1 x64
CPU: Pentium G3258 @ 4.5GHz 1.24v
GPU: Intel integrated
RAM: 4x4GB Corsair Vengence @ DDR3-1600
OS: Linux Mint of some variety + [VM] Win7 SP1 x64